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All questions of Chapter 9: Number Series, Coding and Decoding and Odd Man Out for CA Foundation Exam
Direction: Study the following question carefully and choose the right answer.If ACNE can be coded as 3, 7, 29, 11 then BOIL will be coded as ….?- a)5, 29, 19, 27
- b)5, 29, 19, 25
- c)5, 31, 21, 25
- d)5, 31, 19, 25
Correct answer is option 'D'. Can you explain this answer?
Direction: Study the following question carefully and choose the right answer.
If ACNE can be coded as 3, 7, 29, 11 then BOIL will be coded as ….?
a)
5, 29, 19, 27
b)
5, 29, 19, 25
c)
5, 31, 21, 25
d)
5, 31, 19, 25
|
EduRev GATE answered |
In the given coding system, we have:
So, the code for BOIL is 5, 31, 19, 25.
Hence, option D is correct.
So, the code for BOIL is 5, 31, 19, 25.
Hence, option D is correct.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q. 1, 6, 15, (___), 45, 66, 91- a)25
- b)26
- c)27
- d)28
Correct answer is 'D'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 1, 6, 15, (___), 45, 66, 91
a)
25
b)
26
c)
27
d)
28
|
Dhruv Mehra answered |
Pattern in the series is, +5, +9, .., .., +21, +25
So 4 is getting increased at every term addition.
Missing term in the series will be 15+(9+4)
= 15+13 = 28
Direction: Study the following question carefully and choose the right answer.If ZOO is coded as 2, TAN is coded as 8, then what is the code for WAR?- a)3
- b)6
- c)4
- d)7
Correct answer is option 'B'. Can you explain this answer?
Direction: Study the following question carefully and choose the right answer.
If ZOO is coded as 2, TAN is coded as 8, then what is the code for WAR?
a)
3
b)
6
c)
4
d)
7
|
|
EduRev GATE answered |
The numeric value of the letters (considering A to be 1 and Z to be 26) is added and simplified to obtain a single digit.
For ZOO, the numeric value of Z, O and O is 26, 15 and 15 respectively. Their sum is 56, Now 56 is further simplified to obtain a single digit by adding 5 and 6, which gives us 11 which is again added to obtain 2 as the final value.
Similarly for TAN, the numeric value of T, A and N is 20, 1 and 14 respectively. Their sum is 35, which is simplified as 3 + 5 = 8.
Similar process will be done to obtain the code for WAR, the numeric value of W, A and R is 23, 1 and 18 respectively. Their sum is 42, which is simplified as 4 + 2 = 6.
So, the code for WAR is 6.
Hence option (B) is correct.
For ZOO, the numeric value of Z, O and O is 26, 15 and 15 respectively. Their sum is 56, Now 56 is further simplified to obtain a single digit by adding 5 and 6, which gives us 11 which is again added to obtain 2 as the final value.
Similarly for TAN, the numeric value of T, A and N is 20, 1 and 14 respectively. Their sum is 35, which is simplified as 3 + 5 = 8.
Similar process will be done to obtain the code for WAR, the numeric value of W, A and R is 23, 1 and 18 respectively. Their sum is 42, which is simplified as 4 + 2 = 6.
So, the code for WAR is 6.
Hence option (B) is correct.
Find the one which does not belong to that group ?- a) 27
- b) 37
- c) 47
- d) 67
- e) 17
Correct answer is option 'A'. Can you explain this answer?
Find the one which does not belong to that group ?
a)
27
b)
37
c)
47
d)
67
e)
17
|
Lekshmi Mehta answered |
37, 47, 67 and 17 are prime numbers but not 27.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q. 5, 17, 37, 65, (____), 145- a)97
- b)95
- c)99
- d)101
Correct answer is option 'D'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 5, 17, 37, 65, (____), 145
a)
97
b)
95
c)
99
d)
101
|
Gowri Chakraborty answered |
The numbers are 22 + 1, 42 + 1, 6
2+ 1, 8
2+ 1,., 12
2+ 1.
.'. Missing number = 10
2+ 1 = 101.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q. 1, 4, 9, 16, 25, (____)- a)35
- b)36
- c)48
- d)49
Correct answer is option 'B'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 1, 4, 9, 16, 25, (____)
a)
35
b)
36
c)
48
d)
49
|
|
Ishita Choudhury answered |
The numbers are 12, 22, 32, 42, 52.
.'. Missing number = 62 = 36.
.'. Missing number = 62 = 36.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q.2, 5, 9,(___),20,27- a) 16
- b)14
- c)18
- d)24
Correct answer is option 'B'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q.
2, 5, 9,(___),20,27
a)
16
b)
14
c)
18
d)
24
|
Manoj Jain answered |
The pattern is + 3, + 4,....
.'. Missing number = 9 + 5 = 14.
.'. Missing number = 9 + 5 = 14.
If REQUEST is written as S2R52TU, how will ACID be written?
a) 1DBE b) 1DEB c) 1EDB d) 1D3E Correct answer is option 'D'. Can you explain this answer?
b) 1DEB
c) 1EDB
|
Manoj Ghosh answered |
Here we see, vowels A, E, I, 0, U are coded as 1, 2, 3, 4, 5 respectively,
Each of the consonants in the word REQUEST is moved one step forward to give the corresponding letter of the code.
So, the code for ACID becomes 1D3E.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q. 1, 3, 4, 8, 15, 27, (___)- a)37
- b)44
- c)50
- d)55
Correct answer is option 'C'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 1, 3, 4, 8, 15, 27, (___)
a)
37
b)
44
c)
50
d)
55
|
Kiran Reddy answered |
1st term = 1
2nd term = 3
3rd term = 4
4th term = 1 + 3 + 4 = 8
5th term = 3 + 4 + 8 = 15
6th term = 4 + 8 + 15 = 27
2nd term = 3
3rd term = 4
4th term = 1 + 3 + 4 = 8
5th term = 3 + 4 + 8 = 15
6th term = 4 + 8 + 15 = 27
Thus, the missing term is 7th term = 8 + 15 + 27 = 50
Find the one which does not belong to that group ?- a) 36
- b) 49
- c) 64
- d) 81
- e) 100
Correct answer is option 'B'. Can you explain this answer?
Find the one which does not belong to that group ?
a)
36
b)
49
c)
64
d)
81
e)
100
|
|
Lakshmi Kumar answered |
36 = 62, 49 = 72, 64 = 82, 81 = 92 and 100 = 102.
36, 64, 81 and 100 are squares of composite numbers, but not 49.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 2, 3, 5, 7, 11, (___), 17
- a)12
- b)13
- c)14
- d)15
Correct answer is 'B'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 2, 3, 5, 7, 11, (___), 17
a)
12
b)
13
c)
14
d)
15
|
|
Nidhi Roy answered |
Clearly, the given series consists of prime numbers starting from 2. The prime number after 11 is 13.
So, 13 is the missing number.
So, 13 is the missing number.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q. 2, 3, 5, 7, 11, (___), 17- a)12
- b)13
- c)14
- d)15
Correct answer is option 'B'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 2, 3, 5, 7, 11, (___), 17
a)
12
b)
13
c)
14
d)
15
|
|
Kaavya Nair answered |
Clearly, the given series consists of prime numbers starting from 2. The prime number after 11 is 13.
So, 13 is the missing number.
So, 13 is the missing number.
Find the one which does not belong to that group ?- a) 3
- b) 4
- c) 5
- d) 9
- e) 7
Correct answer is option 'B'. Can you explain this answer?
Find the one which does not belong to that group ?
a)
3
b)
4
c)
5
d)
9
e)
7
|
|
Hrishikesh Mukherjee answered |
3, 5, 9 and 7 are odd numbers, but not 4.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q. 1, 2, 3, 6, 9, 18, (___), 54- a)27
- b)18
- c)36
- d)81
Correct answer is option 'A'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 1, 2, 3, 6, 9, 18, (___), 54
a)
27
b)
18
c)
36
d)
81
|
Arya Roy answered |
The numbers are alternately multiplied by 2 and 3 / 2.
Thus, 1 * 2 = 2,
2 * 3 / 2 = 3,
3 * 2 = 6,
6 * 3 / 2 = 9 and so on.
.'. Missing number = 18 * 3 / 2 = 27.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 3, 6, 5, 20, 7, 34, 9, (____)
- a)48
- b) 66
- c)60
- d)54
Correct answer is option 'A'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 3, 6, 5, 20, 7, 34, 9, (____)
a)
48
b)
66
c)
60
d)
54
|
|
Arya Roy answered |
The sequence is a combination of two series:
I. 3, 5, 7, 9
II. 6, 20, 42, (____)
I. 3, 5, 7, 9
II. 6, 20, 42, (____)
Consider II sequence
1st term = 6
2nd term = 6 + 14 = 20
3rd term = 20 + 14 = 34
1st term = 6
2nd term = 6 + 14 = 20
3rd term = 20 + 14 = 34
Thus, the missing term is 4th term = 34 + 14 = 48
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q.121, 225, 361,(___)- a)529
- b)441
- c)484
- d)729
Correct answer is option 'A'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q.121, 225, 361,(___)
a)
529
b)
441
c)
484
d)
729
|
Pallabi Deshpande answered |
The numbers are 11^2, 15^2, 19^2,... i.e. 11^2, (11 + 4 * 1)^2, (11 + 4 * 2)^2,....
.'. Missing number =(11 + 4 * 3)^2 = (23)^2 = 529.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q. 6, 11, 21, 36, 56, (___)- a)42
- b)51
- c)81
- d)91
Correct answer is option 'C'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 6, 11, 21, 36, 56, (___)
a)
42
b)
51
c)
81
d)
91
|
Hiral Kapoor answered |
Pattern Analysis:
To find the missing term in the given number series, we need to analyze the pattern followed by the given sequence. Let's break down the series and observe the differences between consecutive terms:
6, 11, 21, 36, 56, ___
Difference between consecutive terms:
- The difference between the 2nd and 1st terms is 11 - 6 = 5.
- The difference between the 3rd and 2nd terms is 21 - 11 = 10.
- The difference between the 4th and 3rd terms is 36 - 21 = 15.
- The difference between the 5th and 4th terms is 56 - 36 = 20.
Pattern in the differences:
If we observe the differences between consecutive terms, we can see that they are increasing by 5, 10, 15, 20, and so on. This indicates an arithmetic progression (AP) with a common difference of 5.
Finding the missing term:
To find the missing term, we need to continue the pattern by adding the next difference to the last term of the series.
The last term is 56, and the next difference is 20. Adding 20 to 56, we get 76.
Therefore, the missing term in the given number series is 76.
Verification:
Let's verify our answer by checking if the pattern holds for the entire series:
6, 11, 21, 36, 56, 76
- The difference between the 2nd and 1st terms is 11 - 6 = 5.
- The difference between the 3rd and 2nd terms is 21 - 11 = 10.
- The difference between the 4th and 3rd terms is 36 - 21 = 15.
- The difference between the 5th and 4th terms is 56 - 36 = 20.
- The difference between the 6th and 5th terms is 76 - 56 = 20.
The differences between consecutive terms remain consistent throughout the series, confirming that our answer is correct.
Therefore, option 'C' (81) is the correct alternative that continues the same pattern and fills in the blank space.
To find the missing term in the given number series, we need to analyze the pattern followed by the given sequence. Let's break down the series and observe the differences between consecutive terms:
6, 11, 21, 36, 56, ___
Difference between consecutive terms:
- The difference between the 2nd and 1st terms is 11 - 6 = 5.
- The difference between the 3rd and 2nd terms is 21 - 11 = 10.
- The difference between the 4th and 3rd terms is 36 - 21 = 15.
- The difference between the 5th and 4th terms is 56 - 36 = 20.
Pattern in the differences:
If we observe the differences between consecutive terms, we can see that they are increasing by 5, 10, 15, 20, and so on. This indicates an arithmetic progression (AP) with a common difference of 5.
Finding the missing term:
To find the missing term, we need to continue the pattern by adding the next difference to the last term of the series.
The last term is 56, and the next difference is 20. Adding 20 to 56, we get 76.
Therefore, the missing term in the given number series is 76.
Verification:
Let's verify our answer by checking if the pattern holds for the entire series:
6, 11, 21, 36, 56, 76
- The difference between the 2nd and 1st terms is 11 - 6 = 5.
- The difference between the 3rd and 2nd terms is 21 - 11 = 10.
- The difference between the 4th and 3rd terms is 36 - 21 = 15.
- The difference between the 5th and 4th terms is 56 - 36 = 20.
- The difference between the 6th and 5th terms is 76 - 56 = 20.
The differences between consecutive terms remain consistent throughout the series, confirming that our answer is correct.
Therefore, option 'C' (81) is the correct alternative that continues the same pattern and fills in the blank space.
Find the one which does not belong to that group ?- a) A
- b) R
- c) E
- d) I
- e) O
Correct answer is option 'B'. Can you explain this answer?
Find the one which does not belong to that group ?
a)
A
b)
R
c)
E
d)
I
e)
O
|
|
Akshay Das answered |
A, E, I and O are vowels, while R is a consonant.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q. 17, 19, 23, 29, (___),37- a)36
- b)35
- c)33
- d)31
Correct answer is option 'D'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 17, 19, 23, 29, (___),37
a)
36
b)
35
c)
33
d)
31
|
Sameer Rane answered |
The given series consists of consecutive prime numbers starting from 17. The next prime number after 29 is 31.
So, the missing number is 31.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q. 3, 12, 27, 48, 75, 108, (___)- a) 192
- b)183
- c)147
- d)162
Correct answer is option 'C'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 3, 12, 27, 48, 75, 108, (___)
a)
192
b)
183
c)
147
d)
162
|
|
Manoj Ghosh answered |
The numbers are 3 * 12, 3 * 2
2
, 3 * 3
2
, 3 * 4
2
, 3 * 5
2
, 3 * 6
2
,...
.'. Missing number = 3 * 72 = 3 * 49 = 147.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q. 34, 18, 10, 6, 4, (___)- a)3
- b)2
- c)1
- d)0
Correct answer is option 'B'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 34, 18, 10, 6, 4, (___)
a)
3
b)
2
c)
1
d)
0
|
Ishani Rane answered |
Each term is divided by 2 and then increased by 1 to obtain the next term.
.'. Missing term = (4 / 2) + 1 = 3.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q. 0.5, 0.55, 0.65, 0.8, (___)- a)0.9
- b)0.82
- c)1
- d)0.95
Correct answer is option 'C'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 0.5, 0.55, 0.65, 0.8, (___)
a)
0.9
b)
0.82
c)
1
d)
0.95
|
|
Sameer Rane answered |
The pattern is + 0.05, 0.10, + 0.15,....
.'. Missing number = 0.8 + 0.20 = 1.
Directions: The following questions five three digit number given below:394 632 783 576 895Q.
The positions of the first and the fourth letters of the word RANKED are interchanged similarly the positions of second and fifth letters and third and sixth letter are interchanged. In the new arrangement thus formed how many letters are there in the English alphabetical series between the alphabets. Which are at the extreme ends.- a)Two
- b)Three
- c)Four
- d)Five
- e)More than five
Correct answer is option 'A'. Can you explain this answer?
Directions: The following questions five three digit number given below:
394 632 783 576 895
Q.
The positions of the first and the fourth letters of the word RANKED are interchanged similarly the positions of second and fifth letters and third and sixth letter are interchanged. In the new arrangement thus formed how many letters are there in the English alphabetical series between the alphabets. Which are at the extreme ends.
The positions of the first and the fourth letters of the word RANKED are interchanged similarly the positions of second and fifth letters and third and sixth letter are interchanged. In the new arrangement thus formed how many letters are there in the English alphabetical series between the alphabets. Which are at the extreme ends.
a)
Two
b)
Three
c)
Four
d)
Five
e)
More than five
|
Dia Mehta answered |
The correct option is A.
When RANKED is changed according to given conditions ,the word formed is KEDRAN.
Now K and N are at extreme ends . L,M lies between K and N so correct ans is two (L and M)
When RANKED is changed according to given conditions ,the word formed is KEDRAN.
Now K and N are at extreme ends . L,M lies between K and N so correct ans is two (L and M)
Find the one which does not belong to that group ?- a) 30
- b) 27
- c) 36
- d) 45
- e) 72
Correct answer is option 'A'. Can you explain this answer?
Find the one which does not belong to that group ?
a)
30
b)
27
c)
36
d)
45
e)
72
|
|
Arka Kaur answered |
27, 36, 72 and 45 are divisible by 9, but not 30.
Directions: In this type of questions, some particular words are assigned certain substituted names. Then a question is asked that is to be answered in the substituted code language.If 'rain' is 'water', 'water' is 'road', 'road' is 'cloud', 'cloud' is 'sky', 'sky' is 'sea' and 'sea' is 'path', where do aero planes fly ?- a)Road
- b)Sea
- c)Cloud
- d)Water
- e)None of these
Correct answer is option 'B'. Can you explain this answer?
Directions: In this type of questions, some particular words are assigned certain substituted names. Then a question is asked that is to be answered in the substituted code language.
If 'rain' is 'water', 'water' is 'road', 'road' is 'cloud', 'cloud' is 'sky', 'sky' is 'sea' and 'sea' is 'path', where do aero planes fly ?
a)
Road
b)
Sea
c)
Cloud
d)
Water
e)
None of these
|
|
EduRev GATE answered |
The aero planes fly in the "sky" and the 'sky' is called 'sea'.So, the aero planes fly the 'sea'.
Hence, option B is correct.
Direction: Study the following question carefully and choose the right answer.If RED is coded as 6720, then how would GREEN be coded?- a)1677199
- b)1677209
- c)16717209
- d)9207716
Correct answer is option 'B'. Can you explain this answer?
Direction: Study the following question carefully and choose the right answer.
If RED is coded as 6720, then how would GREEN be coded?
a)
1677199
b)
1677209
c)
16717209
d)
9207716
|
|
EduRev GATE answered |
Clearly, the order of letters in the word is reversed and then each letters is replaced by the numeral denoting its position in the English alphabet. Next, 2 is added to each numeral and the numerals so obtained are joined together physically to get the code. Thus, we have :
RED → DER → 4/5/18 → 6/7/20 → 6720.
GREEN → NEERG → 14/5/5/18/7 → 16/7/7/20/9 → 1677209.
Hence, option B is correct.
Hence, option B is correct.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q. 0.5, 1.5, 4.5, 13.5, (___)- a)30.5
- b)45.5
- c)39.5
- d)40.5
Correct answer is option 'D'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 0.5, 1.5, 4.5, 13.5, (___)
a)
30.5
b)
45.5
c)
39.5
d)
40.5
|
|
Dhruv Mehra answered |
Each term of the series is obtained by multiplying the preceding term by 3.
.'. Missing number = 13.5 * 3 = 40.5.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q. 24, 60, 120, 210, (___)- a)336
- b)330
- c)420
- d)525
Correct answer is option 'A'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 24, 60, 120, 210, (___)
a)
336
b)
330
c)
420
d)
525
|
|
Pallabi Deshpande answered |
The pattern is+ 36, + 60, + 90, .
i.e., + [ 6 * (6 + 0) ], + [ 6 * (6 + 4) ], + [ 6 * (6 + 9) ],
Therfore, Missng number = 210 + [ 6 * (6 + 15)] = 210 + 126 = 336.
Find the one which does not belong to that group ?- a) 123
- b) 132
- c) 231
- d) 321
- e) 213
Correct answer is option 'B'. Can you explain this answer?
Find the one which does not belong to that group ?
a)
123
b)
132
c)
231
d)
321
e)
213
|
|
Arnab Nambiar answered |
Identifying the Odd One Out
Explanation:
To solve this question, we need to find out the pattern among the given numbers. All the given numbers are three-digit numbers, and each digit is used only once.
Let's list down the numbers and analyze them:
a) 123
b) 132
c) 231
d) 321
e) 213
We can see that all the numbers have the same digits, but their positions are different. We need to find the number that does not fit this pattern.
Let's compare the numbers:
- The first digit of all the numbers is 1.
- The second digit of all the numbers is 2.
- The third digit of all the numbers is 3.
We can see that all the numbers have the same digits, but their positions are different. However, option b) 132 is the only number that does not follow the pattern, as the second and third digits are interchanged.
Hence, the correct answer is option b) 132, as it is the odd one out in the given set of numbers.
Explanation:
To solve this question, we need to find out the pattern among the given numbers. All the given numbers are three-digit numbers, and each digit is used only once.
Let's list down the numbers and analyze them:
a) 123
b) 132
c) 231
d) 321
e) 213
We can see that all the numbers have the same digits, but their positions are different. We need to find the number that does not fit this pattern.
Let's compare the numbers:
- The first digit of all the numbers is 1.
- The second digit of all the numbers is 2.
- The third digit of all the numbers is 3.
We can see that all the numbers have the same digits, but their positions are different. However, option b) 132 is the only number that does not follow the pattern, as the second and third digits are interchanged.
Hence, the correct answer is option b) 132, as it is the odd one out in the given set of numbers.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q. 3, 9, 27, 81, (___)- a)324
- b)210
- c)243
- d)162
Correct answer is option 'C'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 3, 9, 27, 81, (___)
a)
324
b)
210
c)
243
d)
162
|
|
Ishani Rane answered |
Each term of the given series is obtained by multiplying its preceding term by 3.
.'. Missin number = 81 * 3 = 243.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q. 563, 647, 479, 815, (___)- a)672
- b)386
- c)143
- d)279
Correct answer is 'C'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 563, 647, 479, 815, (___)
a)
672
b)
386
c)
143
d)
279
|
|
Nandini Rane answered |
The pattern is + 84, - 168, + 336,..... i.e. + 84, - (84 * 2), + (84 * 22),...
.'. Missing number = 815 - (84 * 22) = 815 - 672 = 143.
.'. Missing number = 815 - (84 * 22) = 815 - 672 = 143.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q. 1, 6, 15, (___), 45, 66, 91- a)25
- b)26
- c)27
- d)28
Correct answer is option 'D'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 1, 6, 15, (___), 45, 66, 91
a)
25
b)
26
c)
27
d)
28
|
|
Harshitha Datta answered |
Pattern in the series is, +5, +9, .., .., +21, +25
So 4 is getting increased at every term addition.
Missing term in the series will be 15+(9+4)
= 15+13 = 28
So 4 is getting increased at every term addition.
Missing term in the series will be 15+(9+4)
= 15+13 = 28
Find the one which does not belong to that group ?- a) 508
- b) 328
- c) 608
- d) 148
- e) 706
Correct answer is option 'C'. Can you explain this answer?
Find the one which does not belong to that group ?
a)
508
b)
328
c)
608
d)
148
e)
706
|
|
Lekshmi Mehta answered |
The sum of the digits in 508, 328, 706 and 148 is 13, but not in 608.
Find the one which does not belong to that group ?
- a) Sculpturer
- b) Blacksmith
- c) Carpenter
- d) Tailor
- e) Architect
Correct answer is option 'E'. Can you explain this answer?
Find the one which does not belong to that group ?
a)
Sculpturer
b)
Blacksmith
c)
Carpenter
d)
Tailor
e)
Architect
|
Nikita Singh answered |
All except Architect are manufactures.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q. 12, 32, 72, 152, (___)- a)312
- b)325
- c)515
- d)613
Correct answer is option 'A'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 12, 32, 72, 152, (___)
a)
312
b)
325
c)
515
d)
613
|
|
Pallabi Deshpande answered |
The pattern is + 20, + 40, + 80,...
.'. Missing number = 152 + 160 = 312.
Directions: In this type of questions, some particular words are assigned certain substituted names. Then a question is asked that is to be answered in the substituted code language.If 'dust' is called 'air', 'air' is called 'fire', 'fire' is called 'water', 'water' is called 'colour', 'colour' is called 'rain', and 'rain' is called 'dust', then where do fish live ?- a)fire
- b)water
- c)colour
- d)dust
- e)none of these
Correct answer is option 'C'. Can you explain this answer?
Directions: In this type of questions, some particular words are assigned certain substituted names. Then a question is asked that is to be answered in the substituted code language.
If 'dust' is called 'air', 'air' is called 'fire', 'fire' is called 'water', 'water' is called 'colour', 'colour' is called 'rain', and 'rain' is called 'dust', then where do fish live ?
a)
fire
b)
water
c)
colour
d)
dust
e)
none of these
|
|
EduRev GATE answered |
Fishes live in 'water' and as given, 'water' is called 'colour'. so fishes live in 'colour' .
Hence, option C is correct.
Find the one which does not belong to that group ?- a) 42624
- b) 37573
- c) 84284
- d) 93339
- e) 74347
Correct answer is option 'C'. Can you explain this answer?
Find the one which does not belong to that group ?
a)
42624
b)
37573
c)
84284
d)
93339
e)
74347
|
|
Anuj Roy answered |
42624, 37573, 74347 and 93339 are palindromes but not 84284.
In a certain code language, ‘MOST’ is written as ‘134’ and ‘FUR’ is written as ‘90’. How will ‘SUCCESS’ be written in that language?
- a)89
- b)175
- c)178
- d)215
- e)none of these
Correct answer is option 'C'. Can you explain this answer?
In a certain code language, ‘MOST’ is written as ‘134’ and ‘FUR’ is written as ‘90’. How will ‘SUCCESS’ be written in that language?
a)
89
b)
175
c)
178
d)
215
e)
none of these
|
Telecom Tuners answered |
To determine how 'SUCCESS' is written, let's analyze the coding pattern:
- MOST → 134
- M = 13
- O = 15
- S = 19
- T = 20
- Sum = 13 + 15 + 19 + 20 = 67
- Adding the digits of 67: 6 + 7 = 13 (1 + 3) = 4
- FUR → 90
- F = 6
- U = 21
- R = 18
- Sum = 6 + 21 + 18 = 45
- Adding the digits of 45: 4 + 5 = 9
Following the same pattern for SUCCESS:
- S = 19
- U = 21
- C = 3
- C = 3
- E = 5
- S = 19
- S = 19
- Sum = 19 + 21 + 3 + 3 + 5 + 19 + 19 = 89
Hence, ‘SUCCESS’ is written as 178 (1 + 7 + 8). Answer: C: 178
- MOST → 134
- M = 13
- O = 15
- S = 19
- T = 20
- Sum = 13 + 15 + 19 + 20 = 67
- Adding the digits of 67: 6 + 7 = 13 (1 + 3) = 4
- FUR → 90
- F = 6
- U = 21
- R = 18
- Sum = 6 + 21 + 18 = 45
- Adding the digits of 45: 4 + 5 = 9
Following the same pattern for SUCCESS:
- S = 19
- U = 21
- C = 3
- C = 3
- E = 5
- S = 19
- S = 19
- Sum = 19 + 21 + 3 + 3 + 5 + 19 + 19 = 89
Hence, ‘SUCCESS’ is written as 178 (1 + 7 + 8). Answer: C: 178
Direction: Study the following question carefully and choose the right answer.If REASON is coded as 5 and BELIEVED as 7, then what is the code for GOVERNMENT?- a)6
- b)8
- c)9
- d)10
Correct answer is option 'C'. Can you explain this answer?
Direction: Study the following question carefully and choose the right answer.
If REASON is coded as 5 and BELIEVED as 7, then what is the code for GOVERNMENT?
a)
6
b)
8
c)
9
d)
10
|
|
EduRev GATE answered |
Clearly, each word is coded by the numeral which is 1 less than the number of letters in the word.
Since, there are 10 letters in the word GOVERNMENT, so required = 10 – 1 = 9.
Hence, option C is correct.
Since, there are 10 letters in the word GOVERNMENT, so required = 10 – 1 = 9.
Hence, option C is correct.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q. 5, 9, 17, 29, 45, (___)- a)65
- b)60
- c)70
- d)68
Correct answer is option 'A'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 5, 9, 17, 29, 45, (___)
a)
65
b)
60
c)
70
d)
68
|
|
Ishani Rane answered |
The pattern is + 4, + 8, + 12, + 16, ...
.'. Missing number = 45 + 20 = 65.
Find the one which does not belong to that group ?- a) 35
- b) 48
- c) 75
- d) 84
- e) 57
Correct answer is option 'A'. Can you explain this answer?
Find the one which does not belong to that group ?
a)
35
b)
48
c)
75
d)
84
e)
57
|
|
Pallabi Khanna answered |
48, 75, 84 and 57 are divisible by 3 but not 35.
Directions: In this type of questions, some particular words are assigned certain substituted names. Then a question is asked that is to be answered in the substituted code language.If 'cushion' is called 'pillow', 'pillow' is called 'mat', 'mat' is called 'bedsheet' and 'bedsheet' is called 'cover', which will be spread on the floor ?- a)Cover
- b)Bedsheet
- c)Mat
- d)Pillow
- e)None of these
Correct answer is option 'B'. Can you explain this answer?
Directions: In this type of questions, some particular words are assigned certain substituted names. Then a question is asked that is to be answered in the substituted code language.
If 'cushion' is called 'pillow', 'pillow' is called 'mat', 'mat' is called 'bedsheet' and 'bedsheet' is called 'cover', which will be spread on the floor ?
a)
Cover
b)
Bedsheet
c)
Mat
d)
Pillow
e)
None of these
|
|
EduRev GATE answered |
'mat' will be spread on the floor But 'mat' is called 'bedsheet'.So, a 'bedsheet' will be spread on the floor.
Hence, option B is correct.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q.19, 2, 38, 3, 114, 4, (___)- a)228
- b)456
- c)256
- d)352
Correct answer is option 'B'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q.19, 2, 38, 3, 114, 4, (___)
a)
228
b)
456
c)
256
d)
352
|
|
Ishani Rane answered |
The sequence is a combination of two series :
I. 19, 38, 114, (....) and II. 2, 3, 4
The pattern followed in I is * 2, * 3,...
.'. Missing number = 114 * 4 = 456.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q.1, 2, 5, 12, 27, 58, 121, (___)- a)246
- b)247
- c)248
- d)249
Correct answer is option 'C'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q.1, 2, 5, 12, 27, 58, 121, (___)
a)
246
b)
247
c)
248
d)
249
|
|
Dhruv Mehra answered |
The pattern is * 2 + 0, * 2 + 1, * 2 + 2, * 2 + 3, * 2 + 4, * 2 + 5,...
.'. MIssing number = 121 * 2 + 6 = 248.
Directions: In this type of questions, some particular words are assigned certain substituted names. Then a question is asked that is to be answered in the substituted code language.If 'lead' is called 'stick', 'stick' is called 'nib', 'nib' is called 'needle', 'needle' is called 'rope' and 'rope' is called 'thread', what will be fitted in a pen to write with it ?- a)stick
- b)lead
- c)needle
- d)nib
- e)thread
Correct answer is option 'C'. Can you explain this answer?
Directions: In this type of questions, some particular words are assigned certain substituted names. Then a question is asked that is to be answered in the substituted code language.
If 'lead' is called 'stick', 'stick' is called 'nib', 'nib' is called 'needle', 'needle' is called 'rope' and 'rope' is called 'thread', what will be fitted in a pen to write with it ?
a)
stick
b)
lead
c)
needle
d)
nib
e)
thread
|
Anjali Choudhury answered |
Explanation:
Given substitutions:
- Lead is called stick
- Stick is called nib
- Nib is called needle
- Needle is called rope
- Rope is called thread
Logic:
- From the given substitutions, we can see that the chain of substitutions leads to the following sequence:
Lead → Stick → Nib → Needle → Rope → Thread
Applying the logic:
- To write with a pen, we need a nib.
- According to the given substitutions, nib is called needle.
- Therefore, the item that will be fitted in a pen to write with it is a needle.
Answer:
- The correct answer is option C) needle.
Given substitutions:
- Lead is called stick
- Stick is called nib
- Nib is called needle
- Needle is called rope
- Rope is called thread
Logic:
- From the given substitutions, we can see that the chain of substitutions leads to the following sequence:
Lead → Stick → Nib → Needle → Rope → Thread
Applying the logic:
- To write with a pen, we need a nib.
- According to the given substitutions, nib is called needle.
- Therefore, the item that will be fitted in a pen to write with it is a needle.
Answer:
- The correct answer is option C) needle.
Direction: Study the following question carefully and choose the right answer.
If in a code language, PAINT is written as 74128 and EXCEL is written as 93596, then how will ACCEPT be written in that language?
- a)455978
- b)544978
- c)554978
- d)733961
Correct answer is option 'A'. Can you explain this answer?
Direction: Study the following question carefully and choose the right answer.
If in a code language, PAINT is written as 74128 and EXCEL is written as 93596, then how will ACCEPT be written in that language?
a)
455978
b)
544978
c)
554978
d)
733961
|
|
EduRev GATE answered |
The code for ACCEPT is 455978.
Hence, option A is correct.
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.Q. 1, 2, 3, 5, 8, (___)- a) 13
- b)11
- c)9
- d)15
Correct answer is option 'A'. Can you explain this answer?
In this questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the black spaces.
Q. 1, 2, 3, 5, 8, (___)
a)
13
b)
11
c)
9
d)
15
|
|
Ishani Rane answered |
Each term in the series is the sum of the preceding two terms.
Thus, 1 + 2 = 3,
2 + 3 = 5,
3 + 5 = 8 and so on.
.'. Missing number = 5 + 8 = 13.
Find the one which does not belong to that group ?- a) 104
- b) 110
- c) 108
- d) 112
- e) 116
Correct answer is option 'B'. Can you explain this answer?
Find the one which does not belong to that group ?
a)
104
b)
110
c)
108
d)
112
e)
116
|
|
Tanvi Pillai answered |
Except 110, other numbers are divisible by 4.
Find the one which does not belong to that group ?- a) 16
- b) 28
- c) 36
- d) 64
- e) 4
Correct answer is option 'C'. Can you explain this answer?
Find the one which does not belong to that group ?
a)
16
b)
28
c)
36
d)
64
e)
4
|
|
Tanvi Pillai answered |
16, 36, 64 and 4 are perfect squares but not 28.
Chapter doubts & questions for Chapter 9: Number Series, Coding and Decoding and Odd Man Out - Quantitative Aptitude for CA Foundation 2025 is part of CA Foundation exam preparation. The chapters have been prepared according to the CA Foundation exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for CA Foundation 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
Chapter doubts & questions of Chapter 9: Number Series, Coding and Decoding and Odd Man Out - Quantitative Aptitude for CA Foundation in English & Hindi are available as part of CA Foundation exam.
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