Table of contents | |
Logical Reasoning | |
Mathematical Reasoning | |
Everyday Mathematics | |
Achievers Section |
Note: The questions provided in this document are similar to the questions that were asked in the actual Olympiad exam. So, we recommend you study these for your Olympiad preparation
Q1: The number of unit squares in Figure 10 in the given figure pattern is _______.
(a) 66
(b) 45
(c) 55
(d) 36
Ans: (c)
Figure 1 --- 1 Box
Figure 2 --- 2 + 1 Boxes
Figure 3 --- 3 + 2 + 1 Boxes
That means -
Figure 10 --- 10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 55 Boxes
So, Option C is the correct answer
Q2: There are number of cubes in the given figure.
(a) 8
(b) 10
(c) 12
(d) 15
Ans: (a)
Cross the cubes in the given figure one by one. Now count the number of crossed out shapes.
We have 8 cubes. So, Option A is the right answer
Q3: If P and Q as well as R and S interchange their positions, then what is the position of T with respect to P?
(a) East
(b) West
(c) North
(d) South
Ans: (a)
If we interchange P and Q, then we get the following Picture –
In this new Picture, T is in the East of P. So, Option A is the right answer.
Q4: Find the missing number, if a certain rule is followed in the given figure.
(a) 342
(b) 339
(c) 456
(d) 135
Ans: (b)
The upper half of the circle has 2-digit numbers, all starting with 2.
They are in normal counting sequence – 24, 25, 26, 27.
Now, let's observe the numbers in lower half of the circle.
All are 3-digit numbers, starting with 3.
Let's find out the difference between these numbers.
325 – 318 = 7
332 – 325 = 7
That means there would be same rule between 332 and ?
? – 332 = 7
Or, ? = 7 + 332
Or, ? = 339
So, the right answer is Option B.
Q5: If 'earth' is called 'sky', 'sky' is called 'water', 'water' is called 'light' and 'light' is called 'air', then if someone is thirsty what would he drink?
(a) light
(b) air
(c) sky
(d) water
Ans: (a)
Sol: If someone is thirsty he will drink water but water is called light.
Q6: The Vanilla cake is larger than the Coconut cake. The Chocolate cake is larger than the Vanilla cake but smaller than the Mango cake. Which of the following is the CORRECT order of cakes from the largest to the smallest?
(a) Vanilla, Coconut, Chocolate, Mango
(b) Mango, Chocolate, Coconut, Vanilla
(c) Mango, Vanilla, Chocolate, Coconut
(d) Mango, Chocolate, Vanilla, Coconut
Ans: (d)
Order of cakes from the largest to the smallest: is Mango, Chocolate, Vanilla, Coconut
Q7: If the day before yesterday was Thursday, then what day will be day after tomorrow?
(a) Monday
(b) Sunday
(c) Wednesday
(d) Friday
Ans: (a)
The day before yesterday was Thursday. So today is Saturday and the day after tomorrow will be Monday.
Q8: How many triangles are there in the given figure?
(a) 10
(b) 11
(c) 12
(d) 13
Ans: (c)
There are 12 triangles in the given figure.
Q9: Hema walks towards west. After travelling some distance she take a right turn and again travelling some distance she take a left turn. In which direction she will be facing now?
(a) North
(b) East
(c) West
(d) South
Ans: (c)
So, Hema is facing towards west direction now.
Q10: Which of the following numbers will continue the given series?
70, 68, 64, 58, 50?
(a) 42
(b) 40
(c) 44
(d) 38
Ans: (b)
The pattern is,
Q11: Which of the following is a shared multiple of 5 and 11?
(a) 50
(b) 55
(c) 45
(d) 60
Ans: (b)
Q12: Fill in the blank and select the CORRECT option. 5281 + ? = Largest 5-digit number
(a) 4719
(b) 94718
(c) 92168
(d) 4981
Ans: (b)
Q13: The number of visitors at a Diwali mela on the first two days were 11523 and 9235. On the third day, there were 1580 visitors more than on the first day. How many total people visited the mela on all the three days?
(a) 25611
(b) 31915
(c) 33861
(d) 37141
Ans: (c)
Q14: In a competition, Kinjal scored 4121 points. Koyal scored 3140 points and Payal scored 2406 points. Total points scored by them altogether are:
(a) 6997
(b) 9667
(c) 9767
(d) 9666
Ans: (b)
The total points scored by Kinjal, Koyal and Payal = 4121 + 3140 + 2406 = 9667
Q15: If 1 + 3 + 5 + 7 + 9 + … + 99 = 2500, then 3 + 5 + 7 + 9 + … + 101 =
(a) 2400
(b) 2600
(c) 2610
(d) 2910
Ans: (b)
The second sum replaces 1 with 101, so the total is 2500 + 100 = 2600.
Q16: Alfonse’s high chair is 10 times as tall as his cat. His cat is 8 times as tall as his pet rat. His rat is 6 times as tall as his pet cricket. If his cricket is 4 mm tall, how tall is Alfonse’s high chair?
(a) 3840 mm
(b) 240 mm
(c) 720 mm
(d) 1920 mm
Ans: (d)
Work backwards. Alfonse’s rat is 6 × 4 = 24 mm tall.
His cat is 8 × 24 = 192 mm tall.
His high chair is 10 × 192 = 1920 mm tall.
Q17: P = 454658, Q = 400085, R = 408789. Which one of the following is the greatest?
(a) P + R
(b) Q + R
(c) P + Q
(d) All of these are equal
Ans: (a)
P + R = 454658 + 408789 = 863447
Q + R = 400085 + 408789 = 808874
P + Q = 454658 + 400085 = 854743
So, greatest is P + R.
Q18: Ray runs every other day. If he ran for the first time last month on a Monday, then he ran for the tenth time last month on a
(a) Wednesday
(b) Thursday
(c) Friday
(d) Monday
Ans: (c)
If Ray ran for the first time last month on a Monday, then he ran on Wed., Fri., Sun., Tues., Thurs., Sat., Mon., Wed., and Fri.
The tenth day was a Friday.
Q19: The annual fees of Riya is ₹ 5372 and the annual fees of Rohan is ₹4352. What is their total fees altogether?
(a) ₹ 9734
(b) ₹ 9724
(c) ₹ 9624
(d) ₹ 9825
Ans: (b)
Total fees paid by Riya and Rohan = 5372 + 4352 = 9724
Q20: On Tuesday, 28917 people watched the cricket test match. On Wednesday, 26625 people watched the match. On Thursday, the attendance was 31897. What was the total attendance for these three days?
(a) 87500
(b) 86700
(c) 87439
(d) 85000
Ans: (c)
The total attendance for three days = 28917 + 26625 + 31897 = 87439
Q21: Mr. Sharma invited 276015 guests to his daughter's marriage. Which of the following options shows the correct number name for the number of guests invited by him?
(a) Two lakh seventy-six thousand nine hundred and five
(b) Two lakh seventy-six thousand and fifteen
(c) Twenty-seven lakh six thousand ninety-five
(d) Twenty-seven lakh six thousand nine hundred and five
Ans: (b)
Q22: The place value of which digit is always equal to its own value?
(a) 5
(b) 1
(c) 4
(d) 0
Ans: (d)
The place value of zero (0) is always 0.
Q23: A barrel contains 30 litres of milk. A milk dealer empties it equally into 6 cans. Each can will hold ______ of milk.
(a) 5 L
(b) 24 L
(c) 36 L
(d) 180 L
Ans: (a)
Q24: There are 350 individuals in a seminar hall. If 3/7 of them are males, how many females are present in the seminar hall?
(a) 150
(b) 300
(c) 200
(d) 280
Ans: (c)
Q25: Puneet wanted to take the bus at 6:25 p.m. He arrived at the bus stop 40 minutes before 6:25 p.m. At what time did Puneet arrive at the bus stop?
(a) 5:35 p.m.
(b) 5:45 p.m.
(c) 4:45 p.m.
(d) 5:25 p.m.
Ans: (b)
Q26: There are 480 notebooks in a bookstore. Out of which, 40 notebooks were sold on Monday and 80 notebooks were sold on Tuesday. What fraction of the total notebooks were sold on both the days?
(a) 2/5
(b) 1/4
(c) 3/4
(d) 3/5
Ans: (b)
Q27: Jyoti read 541 pages during her summer reading program. To achieve her target of 650 pages, how many additional pages does she need to read?
(a) 99
(b) 109
(c) 119
(d) 199
Ans: (b)
Q28: The positions of how many digits in the number 321465987 will remain same when the digits are arranged in ascending order?
(a) None
(b) One
(c) Two
(d) Three
Ans: (d)
Required number of digits = 3
Q29: Which one of the following lies at the farthest distance from 0 (zero) on the number line?
(a) 5,694
(b) 49,894
(c) 98,446
(d) 56,942
Ans: (c)
98,446 is the farthest from zero.
Q30: What is the equivalent Hindu-Arabic numeral for XV?
(a) 10
(b) 51
(c) 15
(d) 50
Ans: (c)
X + V = 10 + 5 = 15
Q31: Fill in the blanks and select the CORRECT option.
(i) The difference between the place value and the face value of digit 7 in 57254 is _____.
(ii) The number 20853 when rounded off to nearest hundreds gives ______.
(a) 7007, 20900
(b) 6993, 20900
(c) 6993, 21000
(d) 7017, 20800
Ans: (b)
Q32: What is the Hindu Arabic numeral of MMMCCCXXXIII?
(a) 333
(b) 30303
(c) 3330
(d) 3333
Ans: (d)
MMMCCCXXXIII = 1000 + 1000 + 1000 + 100 + 100 + 100 + 10 + 10 + 10 + 1 + 1 + 1 = 3333
Q33: The radius of a circle is half the length of the side of a square. The square’s perimeter is equal to the diameter of the circle multiplied by
(a) 6
(b) 10
(c) 8
(d) 12
Ans: (b)
If a radius of a circle is half the length of a side of a square, a diameter is equal to the length of one side. The perimeter is 4 times the diameter.
Q34: When each of the following is divided by 8, only _____ has a remainder that is a prime number.
(a) 564
(b) 642
(c) 678
(d) 318
Ans: (c)
The remainder upon division by 8 is shown next to each answer choice.
Of the remainders shown, only 2 is a prime. (1 is not prime)
Q35: My aunt can fold 16 paper cranes in 4 minutes. My uncle can fold 15 paper cranes in 5 minutes. How long would it take them to fold 42 cranes if they work together at those rates?
(a) 6 minutes
(b) 10 minutes
(c) 12 minutes
(d) 14 minutes
Ans: (a)
My aunt can fold 4 paper cranes in 1 minute.
My uncle can fold 3 paper cranes in 1 minute.
Together they fold 7 paper cranes in 1 minute.
It takes them 42÷7=6 minutes to fold 42 paper cranes.
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