IMO- Mathematics Olympiad (SOF) Class 6: Questions 187 - 192 of 1049

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Question number: 187

» Number Systems

MCQ▾

Question

The expression is equivalent to, uses the ________ property.

Choices

Choice (4) Response

a.

Associative

b.

Closure

c.

Identity

d.

Commutative

Question number: 188

» Number Systems

MCQ▾

Question

Multiply the unit’s place of the number obtained by reversing the digits of the number 78923 with the hundred’s place of the number obtained by interchanging the digits in the unit’s place and the thousand’s place of the same number, we get________.

Choices

Choice (4) Response

a.

54

b.

64

c.

16

d.

63

Question number: 189

» Playing With Numbers

MCQ▾

Question

A number is always divisible by 60 if

Choices

Choice (4) Response

a.

It is divisible by both 6 and 10

b.

It is divisible by both 2 and 30

c.

It is divisible by both 4 and 15

d.

All a. , b. and c. are correct

Question number: 190

» Number Systems

MCQ▾

Question

Subtract the number obtained by reversing the digits of the number 20198 from the number obtained by interchanging the digits in the unit’s place and the hundred’s place of the same number, we get________.

Choices

Choice (4) Response

a.

77121

b.

- 68229

c.

68004

d.

- 68211

Question number: 191

» Number Systems

MCQ▾

Question

Find the sum of the given expression.

Choices

Choice (4) Response

a.

55

b.

- 100

c.

- 90

d.

100

Question number: 192

» Playing With Numbers

MCQ▾

Question

There are 165 pens and 195 pencils. These pens and pencils are to be arranged in bags containing the same number of pens and pencils. Then the greatest number of pens and pencils possible in each bag is

Choices

Choice (4) Response

a.

15

b.

18

c.

13

d.

23

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