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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: Some letters are numbered 1, 2, 3, 4, and 5 as shown. Arrange the letters to create a meaningful English word and choose the correct option.
(a) 2, 1, 4, 3, 5
(b) 2, 5, 4, 1, 3
(c) 5, 2, 1, 3, 4
(d) 2, 4, 1, 5, 3
Ans: (b)
Q2: How many elements exist between the fifth element from the left and the ninth element from the right in the provided sequence?
(a) 8
(b) 10
(c) 9
(d) 12
Ans: (b)
Q3: Introducing a man, Kanika said, “He is the only son of my mother’s mother.” How is Kanika related to the man?
(a) Sister
(b) Mother
(c) Aunt
(d) Niece
Ans: (d)
Q4: Sheetal goes to market from home along the indicated path. How many times she will turn left?
(a) 5
(b) 7
(c) 4
(d) 6
Ans: (d)
6 times she will turn left.
Q5: In how many ways can you form the word CLUB from the network shown?
(a) 5
(b) 4
(c) 6
(d) 3
Ans: (a)
There are 5 ways can be formed the word CLUB from the network.
Q6: Find the odd one out.
(a)
(b)
(c)
(d)
Ans: (a)
All others are multiples of 13.
Q7: Find the next term in the given series.
(a) 9
(b) 7
(c) 0
d) 11
Ans: (c)
The pattern of the series is as follows:
Q8: In a certain code '2 5 6' means 'You are good'. '6 3 7' means 'We are bad' and '3 5 8' means 'Good and bad'. Then what is the code for 'and' ?
(a) 2
(b) 3
(c) 5
(d) 8
Ans: (d)
According to equation (iii), and = 8.
Q9: If the following numbers are arranged in the ascending order, what will be the third number from the right end?
718 324 158 769 389 543 896 109
(a) 769
(b) 718
(c) 543
(d) 324
Ans: (b)
The ascending order of the following numbers is as follows:
109 158 324 389 543 718 769 896
So, 718 will be the third right from the end.
Q10: Study the following figure and answer the questions given below.
By which letter, the married teachers who live in joint family are represented?
(a) E
(b) F
(c) D
(d) B
Ans: (c)
Letter 'D' represented the married teachers who live in joint family.
Q11: Study the following information carefully and answer the questions based on it.
Pratik is the son of Sahil. Kanak, Sahil's sister, has a son Rohit and a daughter Nisha. Vikas is the maternal uncle of Rohit.
How is Nish a related to Vikas?
(a) Niece
(b) Sister
(c) Daughter
(d) Wife
Ans: (a)
From the above diagram, it is clear that Nisha is niece to Vikas.
Q12: How man y meaningful English words can be formed from the letters PISL using each letter only once in each word?
(a) Three
(b) One
(c) Four
(d) Two
Ans: (d)
The meaningful words can be formed from the letters PISL i.e. LIPS and SLIP.
Q13: Which of the following option will complete the number pattern below?
(a) 2320
(b) 2220
(c) 2000
(d) 2520
Ans: (a)
The pattern is as follows:
Q14: Find the number of triangles in the given figure.
(a) 18
(b) 20
(c) 24
(d) 27
Ans: (c)
The figure may be labelled as shown.
The simplest triangles are IJO, BCJ, CDK, KQL, MLQ, GFM, GHN and NIO i.e. 8 in number.
The triangles composed of two components each are ABO, AHO, NIJ, IGP, ICP, DEQ, FEQ, KLM, LCP and LGP i.e.10 in number.
The triangles composed of four components each are HAB, DEF, LGI, GIC, ICL and GLC i.e. 6 in number.
Total number of triangles in the figure = 8 + 10 + 6 = 24.
Q15: Find A + B + C + D, so that the sum of all the numbers along each line is 18.
(a) 28
(b) 20
(c) 15
(d) 18
Ans: (d)
8 + A + 8 = 18 ⇒ A = 18 – 16 = 2
8 + B + 6 = 18 ⇒ B = 18 – 14 = 4
6 + C + 5 = 18 ⇒ C = 18 – 11 = 7
8 + D + 5 = 18 ⇒ D = 18 – 13 = 5
So, A + B + C + D = 2 + 4 + 7 + 5 = 18
Q16: In the number 1647.305, how much greater is the place value of 6 compared to that of 3?
(a) 599.7
(b) 3
(c) 300
(d) 3.99
Ans: (a)
Q17: Arrange the following fractions in order from the smallest to the largest:
1/4, 5/7, 3/5, 2/3
(a) 1/4, 2/3, 3/5, 5/7
(b) 3/5, 2/3, 1/4, 5/7
(c) 1/4, 3/5, 2/3, 5/7
(d) 5/7, 2/3, 3/5, 1/4
Ans: (c)
Q18: The product of the 9th multiple of 14 and the 6th multiple of 12 is _________.
(a) 6012
(b) 9072
(c) 5616
(d) 4092
Ans: (b)
Q19: How many right angles are created by the hour hand of a clock when it moves from 3 to 12?
(a) 1
(b) 4
(c) 3
(d) 2
Ans: (c)
Q20: The number of runs scored by a player in four months is as follows: Months March, April, May, June. In which month did the player score the highest number of runs?
(a) June
(b) March
(c) April
(d) May
Ans: (c)
Q21: In the International system, how can the number 6078529 be expressed?
(a) Sixty million seventy eight thousand five hundred twenty nine
(b) Six million seventy eight thousand five hundred twenty nine
(c) Sixty lakh seventy eight thousand five hundred twenty nine
(d) Six lakh seventy thousand eight hundred twenty nine
Ans: (b)
Q22: Estimate the total of 15869 + 45674 when rounded to the nearest thousand.
(a) 61500
(b) 62000
(c) 61000
(d) 61600
Ans: (b)
Q23: Compare and fill in the box.
(a) >
(b) <
(c) =
(d) Can’t be determined
Ans: (a)
View AnswerQ24: How many prime numbers exist between 1 and 25?
(a) 8
(b) 11
(c) 9
(d) 15
Ans: (c)
Q25: A square shaped park ABCD of side 110 m has two equal rectangular flower beds of size 15m × 7m. Length of the boundary of the remaining park is
(a) 340m
(b) 352m
(c) 382m
(d) 440m
Ans: (d)
Perimeter of square = 4a = 4 × 110 m = 440 m
Q26: If a rectangular block of 4 × 6 × 8 cm dimension is cut into small cubes of side 2 cm each, how many small cubes can be formed?
(a) 12
(b) 24
(c) 36
(d) 48
Ans: (b)
Number of smaller cubes
Q27: A boy runs six rounds around a rectangular park whose length and breadth are 200 m and 50 m. Find how much distance did he run in six rounds?
(a) 1500m
(b) 3km
(c) 500m
(d) 1km
Ans: (b)
Perimeter of field = 2(L + B) = 2(200 + 50) = 2 × 250 = 500 m
We know that distance covered in 1 round is equal to perimeter of field
∴ Distance covered in 6 rounds = 6 × P
= 6 × 500 = 3000 m = 3 km
Q28: How many rectangles are there in the figure which are not square?
(a) 24
(b) 16
(c) 14
(d) 12
Ans: (d)
Q29: The breadth of a rectangle is 19 cm. Its length is 3 times longer than its breadth. Find the area of the rectangle.
(a) 152cm2
(b) 418 cm2
(c) 1083 cm2
(d) 1140cm2
Ans: (c)
Breadth = 19 cm
Length = 3 × 19 = 57 cm
Area = l × b = 19 × 57 = 1083 cm2
Q30: The length of a rectangular field is twice its breadth. A man jogged around it 5 times and covered a distance of 3 km. What is the length of the field?
(a) 100m
(b) 200m
(c) 300m
(d) 400m
Ans: (b)
Distance covered in completing one round of the field = perimeter of the field.
∴ Distance covered in 5 rounds
= 5 × Perimeter = 5 × 2 (Length + Breadth) = 10 (2 × Breadth + Breadth) [L = 2 ×B] = 10 × 3 × Breadth = 30 × Breadth.
But, the total distance covered = 3 km = 3000 metres
∴ 30 × Breadth = 3000 metres
⇒ Breadth = 3000/30 metres = 100 metres
⇒ Length = 2 × 100 m = 200 m [Length = 2 × Breadth]
Q31: Which of the following is an equation?
(a) x + 1
(b) x – 1
(c) x – 1 = 0
(d) x + 1 > 0
Ans: (c)
Q32: Simplify: (5x2 + 11x2) – (2x2 + x2)
(a) 13x2
(b) –13x2
(c) 51x2
(d) 15x2
Ans: (a)
(5x2 + 11x2) – (2x2 + x2) = 16x2 – 3x2 = (16 – 3)x2 = 13x2
Q33: What is Y if Y + 4x = 20 and x = 2?
(a) 5
(b) 10
(c) 12
(d) 15
Ans: (c)
Y + 4x = 20 and x = 2
Y + 4 × 2 = 20
Y + 8 = 20
Y = 20 – 8
Y = 12
Q34: Amulya is x years of age now. 5 years ago her age was
(a) (5 – x) years
(b) (5 + x) years
(c) (x – 5) years
(d) (5 ÷ x) years
Ans: (c)
Q35: A farmer planted 2160 tomato plants in a field in rows, each having 72 plants. A certain type of worm destroyed 27 plants in each row. How many plants did the worm destroy in the whole field?
(a) 540
(b) 720
(c) 810
(d) 850
Ans: (c)
Total number of tomato plants = 2160
Number of plants in 1 row = 72
∴ Total number of rows 2160/72 = 30
∵ In one row, worm destroyed = 27 plants
∴ In 30 rows, worm destroyed = 30 × 27 plants = 810 plants
Hence, required number of plants that worm destroyed in the whole field is 810 plants.
Q36: Sonia wants to frame her 7 rectangular pictures, each of length 5 m and breadth 3 m. What length of wood will she need to make the frames?
(a) 115 m
(b) 105 m
(c) 108 m
(d) 112 m
Ans: (d)
Q37: A boy practiced for his school competition for 35 minutes each day. If he practiced for 11 days, what is the total time he spent practicing?
(a) 310 minutes
(b) 460 minutes
(c) 385 minutes
(d) 415 minutes
Ans: (c)
Q38: Arun purchased an air conditioner for ₹ 55,690, a laptop for ₹ 23,545, and an LED TV for ₹ 35,140. What is the total expenditure he incurred?
(a) ₹ 1,07,165
(b) ₹ 1,06,870
(c) ₹ 1,14,375
(d) ₹ 1,25,065
Ans: (c)
Q39: An ant travelled 15 m 67 cm on the first day and 7 m 54 cm more on the second day than the first day. What is the distance covered by the ant on the second day?
(a) 28 m 88 cm
(b) 23 m 65 cm
(c) 25 m 70 cm
(d) 23 m 21 cm
Ans: (d)
Q40: Mansi practices on her guitar for a total of 7 1/2 hours each week. If she dedicates 1 1/2 hours to practice each day, how many days does she practice weekly?
(a) 5
(b) 6
(c) 9
(d) 8
Ans: (a)
Q41: What is the total amount Rakesh spent if he purchased 3 kg of potatoes and 5 kg of onions, given that the price of 1 kg of potatoes is ₹ 25.20 and 1 kg of onions is ₹ 35.70?
(a) ₹ 180.50
(b) ₹ 296
(c) ₹ 320
(d) ₹ 254.10
Ans: (d)
Q42: Rishi had a box with 240 packets of pencils. After giving 1/4 of the packets to his sister, how many packets will remain with him?
(a) 180
(b) 60
(c) 120
(d) 90
Ans: (a)
Q43: A shopkeeper has 54120 kites in his shop. He bought 40105 kites more on Republic Day and sold 75325 kites. How many kites will be left in his shop?
(a) 17500
(b) 15600
(c) 21425
(d) 18900
Ans: (a)
Q44: 905472 books need to be distributed evenly across shelves. If each shelf holds 384 books, how many shelves will be required?
(a) 2216
(b) 2358
(c) 2456
(d) 2410
Ans: (b)
Q45: Sahil purchased two containers of oil. Container A holds 89.15 L of oil, while container B holds 233.321 L of oil. What is the difference in the amount of oil between container B and container A?
(a) 148.701 L
(b) 144.171 L
(c) 151.68 L
(d) 144.71 L
Ans: (b)
Q46: The product of two numbers is 936. If their ratio is 13: 18 then the smallest number is
(a) 39
(b) 36
(c) 54
(d) 26
Ans: (d)
Let 13/18 = x/y (fraction form)
⇒ 13y = 18x
⇒ y = 18/13 x
Product of numbers = 936
x × y = 936
18/13 x2 =936
x2 = 936 × 13/18 x
x2 = 52 × 13
x =
x = 26
Q47: The sum of three numbers is 98. If the ratio of the first to the second is 2 : 3 and that of the second to the third is 5 : 8, then the second number is:
(a) 20
(b) 30
(c) 38
(d) 48
Ans: (b)
Let A, B and C be the first, second and third nos. respectively.
Then, A: B = 2: 3 and B: C = 5: 8 Consider,
A : B = 2: 3 = 2 × 5: 3 × 5 = 10: 15 and B: C = 5: 8 = 5 × 3 : 8 × 3 = 15: 24
∴ A : B : C = 10 : 15 : 24
Let the required number be 10x, 15x and 24x.
Given, sum of three numbers = 98 Then,
∴ 10x + 15x + 24x = 98
⇒ 49x = 98 ⇒ x = 2
⇒ Second number = 15x = 15 × 2 = 30
Q48: The salaries of A and B are in the ratio 8 :3.The salaries of B and C are in the ratio 5: 12. Salaries of A, B and C in the form of a ratio is _________.
(a) 8: 15: 12
(b) 8: 40: 36
(c) 16: 15: 36
(d) 40: 15: 36
Ans: (d)
Q49: The ratio of men and women in a joint family is 9 : 8. If number of men in the family is 18, find the number of women in the family.
(a) 18
(b) 20
(c) 16
(d) 8
Ans: (c)
Let the number of men be 9x and number of women 8x
Since, number of men in the family = 18
Then, number of women in the family = 8x = 8 × 2 = 16
Hence, required number of women in the family is 16.
Q50: Find the ratio of 56 kg to 5600 grams.
(a) 10 : 1
(b) 12 : 11
(c) 9 : 1
(d) 7 : 2
Ans: (a)
1 kg = 1000 grams
56 kg = 56 × 1000 grams
56 kg : 5600 grams
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