CBSE Class 3 Mathematics IMO Olympiad MCQs with Answers Set J

section-I : logical reasoning

Question. What is the rule for the pattern in the following diagram?

(A) Multiply the number of toys by 3
(B) Increase the number of toys by 2
(C) Increase the number of toys by 3
(D) Increase the number of toys by 2 and then by 3
Answer : A

Question. Harsha is standing 7^th from left end in a row of 15 students. Her position from right end is _____.
(A) 9^th
(B) 8^th
(C) 7^th
(D) 6^th
Answer : A

Question. Which of the following objects is the heaviest ?

Answer : C

Question. Sandeep has a presentation on the 10th day from today. If today is Monday, then what is the day for the presentation ?
(A) Thursday
(B) Wednesday
(C) Sunday
(D) Friday
Answer : B

Question.

Answer : D

Question. Mona has forgotten her password. She only remembers that the password has 4 characters. The characters are not made of straight lines. Which of the following can be her password ?
(A) ABDC
(B) SCOT
(C) SCO @
(D) MPNO
Answer : C

Question. Which three parts will complete the figure (X) ?

Answer : A

Question. How many circles are there in the given figure ?

(A) 12
(B) 13
(C) 9
(D) 10
Answer : A

Question. Which is the mirror image of the given figure?

Answer : C

Question.

(A) 72
(B) 54
(C) 64
(D) 36
Answer : C

section-II : mathematical reasoning

Question. A rectangular piece of paper was folded to form the shape shown here. What is the total length of the piece of paper before it was folded?

(A) 68 cm
(B) 64 cm
(C) 58 cm
(D) 50 cm
Answer : C

Question. I am a 2-digit number. If 28 is added to me, I become a 3-digit number. If 63 is subtracted from me, I become a 1-digit number. Which number am I?
(A) 72
(B) 56
(C) 98
(D) 69
Answer : A

Question. I sha can make a paper plane in 2 minutes. She started making paper planes at 4:30 p.m. and took a break of 25 minutes at 6:00 p.m. If she finished making planes at 8:15 p.m., then the number of planes made are ______.
(A) 100
(B) 120
(C) 150
(D) 200
Answer : A

Question. What day will it be 88th day from 4th June 20XX?

(A) Friday
(B) Thursday
(C) Tuesday
(D) Wednesday
Answer : C

Question. How many Δ are needed to balance 8 □ ?

(A) 20
(B) 30
(C) 40
(D) 10
Answer : D

Question. Select the correct match of unshaded fraction.

Answer : D

Question. The sum of P, Q and R is _____.

(A) 36
(B) 24
(C) 22
(D) 25
Answer : C

Question. What are the missing numbers in the boxes?

(A) 123, 1
(B) 122, 4
(C) 122, 5
(D) 102, 1
Answer : A

Question.

(A) 30
(B) 6
(C) 18
(D) 4
Answer : A

Question. Garima travelled from Town S to Town Q and came back to Town S, and Latika travelled from Town R to Town P. Who travelled a longer distance and how much longer?

(A) Latika, 155 km
(B) Garima, 145 km
(C) Garima, 155 km
(D) Latika, 145 km
Answer : C

Question.

Answer : A

Question. There are ______ squares in the given figure.

(A) 4
(B) 6
(C) 8
(D) 5
Answer : B

Question. Find the value of (P + Q) × (R – S).

(A) 6
(B) 5
(C) 7
(D) 3
Answer : C

Question. The shaded fraction of Figure (X) is ______.

(A) 5/12
(B) 6/12
(C) 8/12
(D) 7/12
Answer : D

Question. The capacity of Tank P is 129 litres. The capacity of Tank Q is twice the capacity of Tank P. What is the total capacity of the two tanks?
(A) 387000 L
(B) 129000 mL
(C) 387000 mL
(D) 129000 L
Answer : C

section-III : Everyday mathematics

Question. A bookstore is open from 9:15 a.m. to 9:30 p.m. daily. How long is it open each day?
(A) 10 hrs 45 minutes
(B) 12 hrs 15 minutes
(C) 9 hrs 15 minutes
(D) 11 hrs 25 minutes
Answer : B

Question. Priya pours out some water from buckets X, Y and Z. She has 2942 mL of water left in the 3 buckets altogether. The quantity of water Priya poured out is _____.

(A) 2565 L
(B) 25 L 65 mL
(C) 2665 L
(D) 2 L 565 mL
Answer : D

Question. Beena had ₹ 180. Her father gave her ₹ 500 more. How much more should Beena save to buy the pair of shoes?

(A) ₹ 525
(B) ₹ 125
(C) ₹ 325
(D) ₹ 425
Answer : C

Question. There are 17 cartons, each containing 172 apples. Five cartons contain all the good apples. The remaining cartons are half-filled with good apples. How many bad apples are there in all?
(A) 1320
(B) 1203
(C) 1302
(D) 1032
Answer : D

Question. Six years ago, Namita was 4 times as old as Maya. If Maya is 18 years old now, then the total of their present ages is _____.
(A) 92 years
(B) 70 years
(C) 82 years
(D) 72 years
Answer : D

Question. There were 1826 boys in the Maths class. There were twice the number of boys in the music class. How many boys signed up for the music class?
(A) 3625
(B) 3562
(C) 3652
(D) 913
Answer : C

Question. The weight of a chair is 18 kg. It is 3 kg lighter than a table, and sofa is twice as heavy as the table. Find the weight of the sofa.
(A) 31 kg
(B) 54 kg
(C) 58 kg
(D) 42 kg
Answer : D

Question. Lakshita bought a burger and a cake. She gave the cashier ₹ 100 note and received ₹ 7 change. If the burger costs ₹ 45, what was the cost of the cake?
(A) ₹ 45
(B) ₹ 65
(C) ₹ 48
(D) ₹ 54
Answer : C

Question. Riahad 366 buttons and she put 12 buttons into each packet. How many packets were there and how many buttons are left to be put in any packet?
(A) 36, 6
(B) 30, 6
(C) 6, 36
(D) 30, 5
Answer : B

Question. Sanchi has twice as many marbles as Sia. Jiya has thrice as many marbles as Sanchi. They have 81 marbles altogether. How many marbles does Jiya have?
(A) 9
(B) 18
(C) 27
(D) 54
Answer : D