CBSE Class 3 Mathematics IMO Olympiad MCQs with Answers Set F

MATHEMATICS

Question. A school has been closed for summer vacations from 26th April to 10th June. Find the number of holidays.
A. 46
B. 45
C. 44
D. 47
Answer : A

Question. There were 38 more children than adults in a restaurant. If there were 79 adults, then how many people were there altogether?
A. 117
B. 155
C. 158
D. 196
Answer : D

Question.

A. 0
B. 1
C. 2
D. 3
Answer : C

Question. A prescription for medicine from a clinic is given below. Study it carefully and answer the following question.

How many tablets would Lovely take in 1 week?
A. 14
B. 21
C. 36
D. 42
Answer : D

Question. Form the smallest 4-digit even number by using all digits 7, 4, 1 and 0. Then subtract 648 from it. What is the result?
A. 326
B. 426
C. 334
D. 338
Answer : B

Question. The given pictograph represents the number of visitors at a zoo on a certain day, where each ◯ represents 40 visitors.

How many more visitors entered the zoo between 2 p.m. and 4 p.m. than between 6 p.m. and 8 p.m.?
A. 120
B. 100
C. 80
D. 40
Answer : A

Question. A book has 50 pages. Kamini crossed out 4 odd numbered pages and 5 even numbered pages. How many odd numbered pages are not crossed out?
A. 9
B. 20
C. 21
D. 39
Answer : C

Question. There are 40 tricycles and 24 bicycles in a park. How many more wheels of tricycles are there than that of bicycles?
A. 46
B. 82
C. 72
D. 76
Answer : C

Question. If 31 + 32 + 33 + 34 + 35 is equal to 165, then which of the following has the same value as 41 + 42 + 43 + 44 + 45?
A. 165 + 5
B. 165 + 25
C. 165 + 30
D. 165 + 50
Answer : D

Question. The difference between 456 tens and ? is 2456. What is the missing number in the box?
A. 2912
B. 2000
C. 2104
D. 7016
Answer : C

Question. Study the two balances given below.

The weight of the watermelon is equal to the weight of ______ balls.
A. 14
B. 16
C. 11
D. 20
Answer : A

Question. Rishi has 4 brothers and 2 sisters. How many more sons than daughters does his father have?
A. 2
B. 3
C. 6
D. 7
Answer : B

Question. Pratik went to watch a movie at a cinema. The movie started at 11:45 a.m. and the duration of movie is 2 hrs 45 mins. Which of the following clocks correctly shows the time at which the movie ended?

Answer : D

Question. I left school at 10 minutes to 2 in the afternoon. I arrived home at 2:20 p.m. How long did I take to travel from my school to my home?
A. 20 mins
B. 30 mins
C. 40 mins
D. 1 hr 20 mins
Answer : B

Question. There are 5 lamp posts along a street. They are spaced 7 m apart. What is the distance between the first lamp post and the last lamp post?
A. 21 m
B. 28 m
C. 35 m
D. 56 m
Answer : B

Question. Sahil collects 286 stamps on first day. Next day, he collects 168 stamps more than he collected on the first day. How many stamps does he collect on both days?
A. 454
B. 336
C. 740
D. 504
Answer : C

Question. If the smallest 4-digit number is multiplied by 3 and 500 is subtracted from the product, then the resulting number is
A. 5200
B. 2500
C. 3500
D. 2000
Answer : B

Question. In which of the following two containers is the total quantity of water is 800 ml?

A. P and Q
B. Q and R
C. P and R
D. Q and S
Answer : C

Question. What is the missing number in the box?

A. 310
B. 340
C. 240
D. 210
Answer : B

Question. Which of the following figure sets shows 3/8 < 4/8 with respect to the shaded part?

Answer : D

Question. There are 36 scouts in a training camp. Each tent will be shared by 6 scouts. How many more tents would be needed, if now each tent is shared by 4 scouts?
A. 2
B. 4
C. 6
D. 3
Answer : D

Question. In the given figure, sum of the length of three sides BA, AD, DC and a curved line CB is 71 cm. Also, BA = AD = DC = 13 cm.
What is the length of the curved line?

A. 22 cm
B. 25 cm
C. 27 cm
D. 32 cm
Answer : D

Question. Which of the following abacuses has the place value of 5 as 50?

Answer : C

Question. If hundreds place digit and units place digit is interchanged in each of the following numbers, then which of the numbers will be odd?
A. 2456
B. 2820
C. 7952
D. All of these
Answer : C

Question. Select the INCORRECT option.

Answer : A

Question. Four pens and three notebooks cost ₹ 38. Four pens and nine notebooks cost ₹ 50.
What is the cost of a notebook?
A. ₹ 12
B. ₹ 10
C. ₹ 6
D. ₹ 2
Answer : D

Question. The picture graph given below shows the number of fruits preferred by a group of pupils. Study the picture graph carefully and answer the following question.

How many more pupils preferred Apple and Banana together than Orange and Peach together?
A. 94
B. 0
C. 24
D. 14
Answer : C

Question. How many numbers between 31 and 70 leave no remainder when divided by 4 + 12/2?
A. 3
B. 4
C. 5
D. 8
Answer : C

Question. The value of 

A. 164
B. 82
C. 146
D. 246
Answer : A

Question. Suhasi has ₹ 700. She bought 4 toy cars, 2 dolls and 5 candies. How much amount of money will be left with her?

A. ₹ 130
B. ₹ 195
C. ₹ 205
D. ₹ 225
Answer : A

ACHIEVERS SECTION

Question. The diagram given below shows how toothpicks are used to make figures.

How many toothpicks are used to make Figure 10?
A. 51
B. 56
C. 16
D. 66
Answer : A

Question. The table given below shows the prices of fruits.

What amount of money would be paid by Savita for 6 oranges, 8 apples and 4 pears?
A. ₹ 300
B. ₹ 312
C. ₹ 314
D. ₹ 320
Answer : C

Question.

A. 4
B. 16
C. 25
D. 36
Answer : C

Question. Find the value of X × Y + 6 – 5.

A. 103
B. 109
C. 106
D. 100
Answer : B

Question. Which of the following statements is true about X and Y?
X Y Y Y
+ X X Y
Y 0 0 0
A. X is greater than Y.
B. X is smaller than Y.
C. Both X and Y are even numbers.
D. Both X and Y are odd numbers.
Answer : B