CBSE Class 3 Mathematics IMO Olympiad MCQs with Answers Set P

1. Which one of the following digits is at the place of ten thousand in the numerals 81564 ?
(a) 5
(b) 4
(c) 8
(d) 2
Answer :

2. The expanded form of the number, 648345 is:
(a) 6 + 4 + 8 + 3 + 4 + 5
(b) 600000 + 40000 + 8000 + 300 + 40 + 5
(c) 60000 + 4000 + 83000 + 45
(d) All of these
Answer : (b) Expanded form of 648345 = 600,000 + 40,000 + 8,000 + 300 + 40 + 5.

3. There is a straight street between India gate and President house. If president house is supposed to be point A and India gate is point B then the length of street between the points is:
(a) A line
(b) A line segment
(c) An arrow
(d) All of these
Answer :

4. How many triangles are there in the figure below ?

(a) 9
(b) 8
(c) 6
(d) 3
Answer : (b) There are 8 triangles in the figure.

5. How much is 65 kg greater than 62450g?
(a) 2 kg 500 g
(b) 2 kg 400 g
(c) 2 kg 550 g
(d) 2 kg 450 g
Answer : (c) 65 kg = 65000 g
Difference = 65000 g – 62450 g = 2550 g
= 2kg 550 g

6. Convert 52367 ml into litres and millilitres.
(a) 5l 2367ml
(b) 523l 67ml
(c) 52l 367ml
(d) 50l 367ml
Answer : (c) 52367ml = 52000ml + 367ml
= 52l 367ml

7. What is the difference between the greatest and smallest of five digit numbers ?
(a) 80000
(b) 90000
(c) 89999
(d) 10000
Answer : (c) Greatest five digit number = 99999
Smallest five digit number = 10000
Difference = 99999 – 10000 = 89999

8. A bicycle covers a distance of 12 km in one hour. What is the distance covered by the bicycle in 6 hours?
(a) 68 km
(b) 42 km
(c) 72 km
(d) 56 km
Answer : (c) 1 hour = 60 minutes
Distance covered in hour = 12 km
∴ Distance covered in 6 hour = 12 × 6 = 72 km

9. Convert 4 km 5 metre in metre.
(a) 4400 m
(b) 4005 m
(c) 4200 m
(d) 4000 m
Answer : (b) 1 km = 1000 m
∴ 4 km = 4 × 1000 = 4000 m
4 km 5 metre = 4000 + 5 = 4005 m

10. Consider the following statements:
Statement 1: A point has place but does not have length and width.
Statement 2: A sphere has only one flat face.
Which one of the following is correct about the above statements?
(a) 1 is true and 2 is false
(b) 1 is false and 2 is true
(c) Both statements are true
(d) Both statements are false
Answer : (a) A sphere has only one curved face.

11. How many vertices are there in the figure below?

(a) 5
(b) 4
(c) 6
(d) 3
Answer : (c) The figure given is a hexagon and it has six vertices.

12. Find the smallest even number.
(a) 1
(b) 2
(c) 3
(d) 4
Answer : (b) 2 is the smallest even number.

13. Consider the following statements:
Statement 1: Product of a number by 1 is the number itself.
Statement 2: Product of a number by 0 is always 1.
Which one of the following is correct about the above statements?
(a) Statement 1 is false and 2 is true
(b) Statement 1 is true and 2 is false
(c) Both statements 1 and 2 are false
(d) Both statements 1 and 2 are true
Answer : (b) Product of a number by 0 is.

14. State whether the following statements are True or False.
(a) 1 rupee = 100 paise
(b) A year has 11 months
(c) Quarter of an hour means 15 minutes
(d) 1 m = 1000 cm Now, choose the correct option.
(a) TTFF (b) TFTF
(c) TFFT (d) FTFT
(d) 1 m = 1000 cm
Answer : (b) A year has 12 months.
There are 100 cm in 1 metre.

15. The cost of 12 toffees is ₹ 6. What would be the cost of 1 toffee ?
(a) 50 paise
(b) 60 paise
(c) 70 paise
(d) 75 paise
Answer : (a) The cost of 12 toffees = ₹ 6
= 600 paise  ₹ 1 = 100 paise
∴ The cost of 1 toffee
= 600/12 = 50 = paise

16. An object has length, width and height. It has 8 corners and all sides are equal. Which one of the following is the geometrical name of the object ?
(a) Cylinder
(b) Cuboid
(c) Cube
(d) All of these
Answer : (c) A cube has length, width and height, eight corners and all sides are equal.

17. Arrange in descending order : 7/9, 4/9, 11/9, 13/9
(a) 13/9 < 11/9 < 7/9 < 4/9
(b) 13/9 < 11/9 > 7/9 < 4/9
(c) 13/9 > 11/9 > 7/9 > 4/9
(d) All of these
Answer : (c) The correct descending order is 13/9 < 11/9 < 7/9 < 4/9

DIRECTIONS (Q 18 to 20) : At a parking, a board shows the following information:
Now, answer the following questions.

18. What is the number of scooters in the parking place ?
(a) 4000
(b) 5000
(c) 6000
(d) 9000
Answer : (a) Given
Car = 500 number of vehicles number of scooters is parking
= 3 × 500 = 1500

19. How many cars are parked?
(a) 1500
(b) 500
(c) 1000
(d) 2000
Answer : (c) number of cars in parking = 2 × 500 = 1000

20. Which two vehicles are same in number in the parking place?
(a) Car, Scooter
(b) Car, Auto
(c) Scooter, Auto
(d) None of these
Answer : (c) number of auto in parking = 3 × 500 = 1500
Thus, number of scooters = Number of auto

21. In the year of 2013, 2000 students appeared in a competitive examination and this information was published by a news paper which is given below :
Year       Appeared students
2012                1890
2013                2000
2014                1980
How many more students appeared in the year of 2014 than 2012?
(a) 80
(b) 90
(c) 20
(d) 98
Answer : (b) 1980 – 1890 = 90.

22. Which one of the following is the short form number for ?
50000 + 4000 + 300 + 20 + 8
(a) 45328
(b) 54328
(c) 50438
(d) None of these
Answer : (b) Short form of 50000 + 4000 + 300 + 20 + 8 is 54328

23. Fill in the numbers from the options on the number line given below ?

(a) 1536
(b) 1538
(c) 1532
(d) 1530
Answer : (a) 1524 + 12 = 1536

24. Cody had 1230 green apples and 8270 red apples. If 6783 green and red apples were sold. How many apples were left ?
(a) 2718
(b) 2717
(c) 2700
(d) 2800
Answer : (b) Cody had green apples = 1230
Red apples = 8270
Total number of apples
= 1230 + 8270 = 9500
Apples sold = 6783
Apples left 
= 9500 – 6783 = 2717

25. A tap dispense 5 litres of water in 1 minute. How much water does the tap dispense in one hour ?
(a) 100 litre
(b) 500 litre
(c) 300 litre
(d) 200 litre
Answer : (c) In 1 minute a tap dispense water = 5 litres
∴ In 1 hour (60 minutes) it dispense water = 5 × 60 = 300 litres

26. The cost of prepared food of a reputed hotel in the city are as follows.
Rice plate ₹ 230 Green vegetables ₹ 175 Curd ₹ 35 Coffee ₹ 25 Cody placed order for 1 rice plate, 1 plate of green vegetables and 1 cup of curd. How much money did Cody pay ?
(a) ₹ 440
(b) ₹ 467
(c) ₹ 468
(d) ₹ 470
Answer : (a) The cost of 1 rice plate = ₹ 230
The cost of 1 plate of green
vegetables = ₹175
The cost of 1 cup of curd = ₹ 35
Cody paid = ₹ 230 + ₹ 175 + ₹ 35 = ` 440

27. The sum of 4-digit largest and 2-digit smallest numbers is :
(a) 109
(b) 10009
(c) 1009
(d) 100009
Answer : (b) The largest 4 digit number = 9999
The smallest 2 digit number = 10
The sum of largest 4 digit number and smallest 2 digit number = 9999 + 10 = 10009

28. In a town the total number of voters are 34765 and the total number of children in the age group of 10 to 14 years are 23451. If the total number of women voters are 25621.
Find the total number of men voters.
(a) 9100
(b) 9144
(c) 9250
(d) 2502
Answer : (b) Total number of voters = 34765
Total number of women voters
= 25621
Then, total number of men voters
= 34765 – 25621 = 9144

29. The total number of people in a train is 880. These people are travelling in 8 coaches. Find the number of people in each coach.
(a) 110
(b) 111
(c) 112
(d) 109
Answer : (a) The total number of people in train = 880
Number of coaches = 8
Number of people in each coach = 880/8 = 110

30. If cost of 1 packet of toffees is ₹ 75.20, then what will be the cost of such 5 packets?
(a) ₹ 367.50
(b) ₹ 376
(c) ₹ 365
(d) ₹ 365.20
Answer : (b) Cost of 1 packet of toffees
= ₹ 75.20
Cost of 5 packets = ₹ 75.20 × 5
= ₹ 376.00

31. There are 3960 sheets of paper in bundles. If one bundle contains 18 sheets then how many bundles are there?
(a) 240
(b) 220
(c) 230
(d) 250
Answer : (b) Total sheets of paper in bundles = 3960
Number of sheets in one bundle = 18
Number of bundles = 3960 ¸ 18 = 220

32. The difference between 3/7 and 4/4 is:
(a) 2/4
(b) 1/4
(c) 1
(d) 10/4
Answer : (c) Difference = 7/4 - 3/4 = 4/4 = 1

33. The maximum time for the English test paper is 45 minutes. If the test starts at 10:00 a.m. then at what time does it end?
(a) 9 : 40 a.m.
(b) 10 : 45 a.m.
(c) 11 : 50 a.m.
(d) 11 : 30 a.m.
Answer : (b) Maximum time for English test
paper = 45 minutes
The test starts at 10 : 00 a.m.
So, the test ends =

34. Match the following:
     Column-I          Column-II
(A) 1/2 + 3/7          (1) 3/5
(B) 6/7 - 2/7           (2) 1/2
(C) 9/10 - 3/10       (3) 5/7
(D) 2/10 + 3/10      (4) 4/7
     A   B   C   D
(a) 3   1   4   2
(b) 2   4   1   3
(c) 3   4   1   2
(d) 4   1   2   3
Answer : (c) (A) → 3, (B) → 4, (C) → 1, (D) → 2