Playing With Numbers (IMO- Mathematics Olympiad Class 6): Questions 73 - 80 of 86

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Question number: 73

» Playing With Numbers

MCQ▾

Question

Equation is divisible by

Choices

Choice (4) Response

a.

3 & 9

b.

9

c.

7

d.

3

Question number: 74

» Playing With Numbers

MCQ▾

Question

The least number which when increased by 11 is exactly divisible by 11 is

Choices

Choice (4) Response

a.

43

b.

63

c.

32

d.

22

Question number: 75

» Playing With Numbers

MCQ▾

Question

The reciprocal of prime number that is placed at third before prime number 23 is

Choices

Choice (4) Response

a.

Equation

b.

2

c.

1

d.

0

Question number: 76

» Playing With Numbers

MCQ▾

Question

Two tankers contain 760 liters and 570 liters of chemicals respectively, then the maximum capacity of a container which can measure the chemical out of both the tankers when used an exact number of times is ________.

Choices

Choice (4) Response

a.

220 liters

b.

175 liters

c.

190 liters

d.

180 liters

Question number: 77

» Playing With Numbers

MCQ▾

Question

The least number which when decreased by 9 is exactly divisible by 12, 16, 24 and 48 is

Choices

Choice (4) Response

a.

48

b.

57

c.

39

d.

16

Question number: 78

» Playing With Numbers

MCQ▾

Question

Find the smallest number which will divide the smallest 3-digit number and the smallest 4-digit number exactly.

Choices

Choice (4) Response

a.

10

b.

5

c.

2

d.

4

Question number: 79

» Playing With Numbers

MCQ▾

Question

Which of the following is a perfect cube?

Choices

Choice (4) Response

a.

8

b.

125

c.

64

d.

All a. , b. and c. are correct

Question number: 80

» Playing With Numbers

MCQ▾

Question

The numbers which are not multiplies of 2 are called________.

Choices

Choice (4) Response

a.

Prime

b.

Even

c.

Odd

d.

Composite

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