CBSE Class 3 Mathematics IMO Olympiad MCQs with Answers Set 12

Mathematics

Question. Arrange the following numbers in ascending order.

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

Question. Find the possible values of P and Q respectively.

A. 2000, 6436
B. 6436, 2000
C. 6336, 2000
D. Both A and B
Answer : D

Question. Fill in the blanks.
(i) At 20 minutes past six, the minute hand points at _____.
(ii) At noon and midnight both hands point to _____.
A. (i)-6, (ii)-12
B. (i)-8, (ii)-6
C. (i)-4, (ii)-6
D. (i)-4, (ii)-12
Answer : D

Question. Difference between the greatest and smallest 4-digit number formed by using given digits is _______.

A. 6317
B. 7371
C. 6361
D. 7261
Answer : B

Question. I am thinking about _____ and _____.

A. 998, 1000
B. 1001, 1000
C. 1000, 999
D. 1000, 1001
Answer : C

Question. Fill in the box with '>', '<' or '='.

A. >
B. <
C. =
D. Can't be determined
Answer : B

Question. Arrange the difference of shaded fractions in descending order

A. (S), (Q), (R), (P)
B. (S), (Q), (P), (R)
C. (Q), (S), (P), (R)
D. (R), (P), (Q), (S)
Answer : B

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

A. 2902
B. 2209
C. 1986
D. 1890
Answer : C

Question. Which of the following multiplication fact satisfies the statement below:
Garima did 125 multiplication problems last week. If she did 8 times as many as last week than this week, then how many did she do in two weeks altogether?
A. 125 × 8 × 2
B. 8 × 125 + 125 × 8
C. 125 + 125 × 8
D. 125 × 8 + 125 + 8
Answer : C

Question. Sanchi forgot the four digit code of her safe. Help her to remember the code, using the given clues.

A. 1085
B. 1805
C. 1806
D. 1086
Answer : D

Question. If there are no holidays for festivals in the month of July but all Saturdays and Sundays are holidays, then the number of working days in July, 20XX are ________.

A. 23
B. 22
C. 24
D. 21
Answer : A

Question. How many metres are in 5 km?
A. 1000
B. 50
C. 200
D. 5000
Answer : D

Question. If Priya read 15 pages of her story book in a day, then how many pages did she read in 3 weeks?
A. 315
B. 45
C. 105
D. 300
Answer : A

Question. Match the following.

A. (P)→(iv), (Q)→(i), (R)→(iii), (S)→(ii)
B. (P)→(iv), (Q)→(iii), (R)→(ii), (S)→(i)
C. (P)→(iv), (Q)→(iii), (R)→(i), (S)→(ii)
D. (P)→(iii), (Q)→(iv), (R)→(i), (S)→(ii)
Answer : C

Question. Rohan delivers 125 newspapers on weekdays. How many newspapers does he deliver in all on Sunday? Which of the following conditions will solve the given problem?
(i) He delivers 14 more papers on Sunday than on weekdays.
(ii) He works 30 days in all.
(iii) The cost of a newspaper is ₹ 2.
A. Only (i)
B. Only (iii)
C. Only (ii)
D. Both (i) and (ii)
Answer : A

Question. The 2 buckets below (not drawn to scale) are filled with water to their brim.
If 3 full glasses are needed to fill up Bucket Y, then how many glasses are needed to fill up Bucket X?

A. 9
B. 3
C. 4
D. 6
Answer : D

Question. The two clocks P and Q below are not showing the correct time. Q is 1/2 hr fast. P is 90 mins slow. What is the correct time?

A. 1 : 30
B. 12 : 30
C. 1 : 15
D. 2 : 15
Answer : C

Question.

A. 326
B. 78
C. 486
D. 956
Answer : C

Question. If the weight of an apple is 200 g, then find the total weight of 6 oranges and 4 apples.

A. 1600 g
B. 800 g
C. 400 g
D. 600 g
Answer : A

Question. The sum of all the even numbers between 1535 + 279 and 1984 – 164 is __________.
A. 6334
B. 3634
C. 4336
D. 6364
Answer : B

Question. In 1 minute, a machine can pack 8 big boxes of 1000 chocolates each, 3 medium boxes of 100 chocolates each and 7 small boxes of 10 chocolates each. Find the total number of chocolates the machine can pack in two minutes.
A. 8370
B. 16080
C. 16720
D. 16740
Answer : D

Question. Sidhi worked from 9 a.m. to 3 p.m. She had an hour lunch break in between and bought herself a meal of ₹ 50. If she earned ₹ 120 per hour (excluding the lunch break), how much money is left with her after the work on that day?
A. ₹ 650
B. ₹ 760
C. ₹ 550
D. ₹ 870
Answer : C

Question. Beena walked from Town A to Town X, then Town Z, then Town Y and then Town W using the given paths only.
What was the total distance she had travelled?'

A. 2 km 420 m
B. 3 km 800 m Town Z
C. 3 km 837 m
D. 2 km 520 m
Answer : C

Question. Which of the following satisfies the below mathematical statement?

     P Q R
A. × × ×
B. – + ×
C. + – ×
D. × + –
Answer : D

Question. There are 12 players in a soccer team. If each player drinks 3 cups of water after a soccer match, then how many pitchers of water will all the players drink in total?

A. 4
B. 6
C. 9
D. 12
Answer : C

Question. Based on Scale A and Scale B, which group of objects is needed to balance the 4 bars on Scale C?

Answer : C

Question. The sum of a mystery number and 8900 is 100 less than 9500. What is the mystery number?
A. 600
B. 500
C. 700
D. 800
Answer : B

Question. Four buses, P, Q, R and S, arrived at a bus terminal at four different timings in the afternoon.
The given chart shows the arrival times of buses P, Q, R and S respectively. Which bus was the second last to arrive at the bus terminal?

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

Question. Which of the following statements is fa lse?
A. The sum of two odd numbers is an odd number.
B. The sum of an odd number and an even number is an odd number.
C. The difference between two even numbers is an even number.
D. The difference between two odd numbers is an even number.
Answer : A

Question. Trishika was born in 2015. Her younger brother is born in the leap year following the year she was born. In which year is her brother born?
A. 2016
B. 2012
C. 2014
D. 2020
Answer : A

Achievers Section

Question. Which of the following bar graphs correctly represent the data in the given pictograph showing the number of correct answers marked by four friends in Maths test?

Answer : A

Question. Find the value of P + Q + R + S.

A. 15
B. 19
C. 18
D. 16
Answer : B

Question. Savita walked for 30 minutes on Monday morning. If she increases her walking time by 10 minutes every day, then on coming Friday she will walk for _____.
A. 1 hour 10 mins
B. 50 mins
C. 1 hour
D. 40 mins
Answer : A

Question. If 2 more beads are added at thousands place, 3 beads are taken away from hundreds place and tens place each, 2 more beads are added at ones place, then number name of new number formed on abacus is _______.

A. Six thousand five hundred thirty six
B. Five thousand three hundred sixty six
C. Five thousand three hundred ninety six
D. Three thousand five hundred sixty six
Answer : B

Question. Following are the ages of six children :
• Atharva's age is 2 years and 3 months.    • Aastha's age is 5 years and 6 months.
• Veenu's age is 2 years and 4 months.      • Mohit's age is 5 years and 7 months.
• Avika's age is 3 years and 2 months.       • Aanya's age is 4 years and 11 months.
Arrange them according to their ages from the youngest to the oldest.
A. Veenu, Atharva, Aanya, Avika, Aastha, Mohit
B. Mohit, Aastha, Aanya, Avika, Veenu, Atharva
C. Atharva, Aastha, Veenu, Aanya, Avika, Mohit
D. Atharva, Veenu, Avika, Aanya, Aastha, Mohit
Answer : D