CBSE Class 3 Mathematics IMO Olympiad MCQs with Answers Set 07

MATHEMATICS

Question. What is the missing number in the box?

A. 4
B. 10
C. 8
D. 18
Answer : C

Question. If the smallest 4-digit number is multiplied by 2 and 20 is added to the product, then the resulting number is ______.
A. 2002
B. 2200
C. 2020
D. 220
Answer : C

Question. Study the given information carefully and answer the following question

If you buy 2 cold drinks, 3 chocolates and 1 toy car, then how much amount of money you need to pay?
A. ₹ 110
B. ₹ 150
C. ₹ 120
D. ₹ 170
Answer : D

Question. There were 40 tables in each row in an auditorium having 10 rows. If there were 49 fewer chairs than tables, then find the number of chairs.
A. 272
B. 351
C. 271
D. 105
Answer : B

Question.

A. 30
B. 6
C. 18
D. 4
Answer : C

Question. The given clocks shows Sushmita's dinner time and her friend Shashank's dinner time.
How much earlier is Sushmita's dinner time than her friend Shashank's dinner time?

A. 2 hrs 30 mins
B. 1 hr 30 mins
C. 2 hrs
D. 3 hrs 30 mins
Answer : A

Question. Dividing 81 by x the answer is x and dividing 54 by x the answer is 6, so the value of x is
A. 1
B. 6
C. 3
D. 9
Answer : D

Question. Which of the following figures shows 1/2 as shaded fraction?

Answer : C

Question. Find the difference between the smallest four-digit number and the greatest four-digit number formed by using the digits 8, 9, 1 and 2 (each digit used only once).
A. 8523
B. 8352
C. 8532
D. 8253
Answer : C

Question. What is the weight of ⚫ ?

A. 10 kg
B. 30 kg
C. 60 kg
D. 40 kg
Answer : B

Question. 4 hundreds 6 tens = ________ hundreds 16 tens
A. 1
B. 2
C. 3
D. 4
Answer : C

Question. I am a 2-digit number less than 24. If I am divided by 3, my units place is the quotient and the remainder is 0. What number am I?
A. 24
B. 21
C. 18
D. 15
Answer : D

Question. The number that is 432 more than the number shown on the abacus is

A. Eight hundred and thirty two
B. Five hundred and thirty five
C. Eight hundred and sixty seven
D. Nine hundred and fifteen
Answer : C

Question. Reena wants to go town Q from town P. She has 4 different ways of going from town P to town Q. The shortest way of going from town P to town Q is through town ______.

A. W
B. X
C. Y
D. Z
Answer : C

Question. Anisha spins a wheel having 4 colours on it. The arrow will least likely to come on _____.

A. Red
B. White
C. Black
D. Blue
Answer : D

Question. The value of♣ is 6 times as much as the value of ♠. What is the value of ♣, if ♠ – 28 is 59?
A. 548
B. 522
C. 186
D. 912
Answer : B

Question. If 50 children were arranged in rows of 7 each, then how many rows did they make and how many children were left respectively?
A. 6, 3
B. 8, 2
C. 7, 1
D. 9, 1
Answer : C

Question. If a toy soldier costs ₹ 28 more than a toy car and the cost of a toy car is ₹ 129, then the cost of a toy soldier is ______.
A. ₹ 139
B. ₹ 157
C. ₹ 101
D. ₹ 100
Answer : B

Question. There are _______ slanting lines in the given figure.

A. 22
B. 28
C. 30
D. 32
Answer : A

Question. The difference between the largest three-digit number and the smallest two-digit number is
A. 1
B. 989
C. 949
D. 90
Answer : B

Question. Which of the following sets of notes has the maximum value?

Answer : B

Question. The given figure is made up of 5 squares. Find the length of the side of square E.

A. 6 cm
B. 8 cm
C. 10 cm
D. 12 cm
Answer : C

Question. Mansi has 7 boxes of beads. Each box contains 244 beads. She gives some beads to Manisha and left with half of the total number of beads. How many beads does she give to Manisha?
A. 827
B. 1281
C. 871
D. 854
Answer : D

Question. Find the missing values of P, Q, R and S respectively.

A. 3, 2, 4, 4
B. 2, 3, 8, 0
C. 3, 2, 8, 0
D. 3, 2, 8, 4
Answer : C

Question. Which of the following two numbers when add up will give the result 8757?
P. 4653 Q. 4114 R. 4254 S. 4104
A. P and Q
B. P and S
C. P and R
D. Q and S
Answer : B

Question. If Manpreet had a 70 m long rope and it had been cut into 7 equal pieces. He gave 3 pieces to his friend. What was the total length of the pieces of rope left with him?
A. 30 m
B. 40 m
C. 42 m
D. 10 m
Answer : B

Question. Rohan had ₹ 500. He gave 1/5 of the total amount of money to his brother and 1/4 of the total amount of money to his sister. Find the amount of money left with Rohan.
A. ₹ 350
B. ₹ 250
C. ₹ 275
D. ₹ 200
Answer : C

Question. Which of the following set of numbers is in the order from the greatest to the smallest?
A. 8321, 8102, 8768, 1820
B. 1820, 1802, 8102, 2108
C. 8976, 8768, 8678, 7876
D. 1820, 8102, 8769, 8321
Answer : C

Question. Which of the following thermometers shows the temperature (in °C) which is half the sum of 50°C and 20°C?

Answer : B

Question. Match the following.
      Column-A                    Column-B
(a) 8 tens 2 ones               (1) 638
(b) 483 + 155                     (2) 142
(c) (498 – 214) ÷ 2             (3) 7 tens 12 ones
(d) 430                               (4) 4 hundreds 3 tens

Answer : B

ACHIEVERS SECTION

Question. The given bar graph shows the number of visitors went to an exhibition on different days.

(a) How many more visitors went to the exhibition on Day 4 than on Day 1?
(b) On which day was the number of visitors 100 more than the number of visitors on Day 5?
     (a)         (b)
A. 50        Day 1
B. 100      Day 4
C. 50        Day 4
D. 100      Day 1
Answer : C

Question. Study the diagram given below. Each figure stands for a number.

A. 0
B. 2
C. 3
D. 8
Answer : B

Question. Manish, Roshan and Rahul have 8862 candies altogether. Manish has 2532 candies and Roshan has half of the candies that Manish has.
(a) How many candies does Roshan have?
(b) How many candies does Rahul have?
      (a)   (b)
A. 5064 1267
B. 1266 5264
C. 1266 5064
D. 1206 5064
Answer : C

Question. Which of the following statements is INCORRECT?
A. 321 tens less than 721 tens is 40 hundreds.
B. There are 4 odd numbers between 21 ones and 30 tens.
C. 4 thousands 6 tens more than 21 hundreds is 6160.
D. 4200 + 339 comes just before 454 tens.
Answer : B

Question. In a 4-digit number PQRS, if
• The digit R is 6 more than P.
• The digit P is smallest even number greater than 1.
• The digit Q is 4 less than R.
• The digit S has the value (5 tens – 50 ones).
Then find the value of (2 × P) – Q + (3 × R) + S.
A. 0
B. 14
C. 24
D. 34
Answer : C