Fractions and Decimals (IMO- Mathematics Olympiad Class 7): Questions 23 - 29 of 85

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Question number: 23

» Fractions and Decimals

MCQ▾

Question

Which of the following statement is correct?

Choices

Choice (4) Response

a.

1 is called the multiplicative identity for rational numbers

b.

0 is called the additive identity for rational numbers

c.

The additive inverse of 0 is zero itself.

d.

All a. , b. and c. are correct

Question number: 24

» Fractions and Decimals

MCQ▾

Question

Express the value of 913534 in its simplest form.

Choices

Choice (4) Response

a.

625

b.

547

c.

3712

d.

9112

Question number: 25

» Fractions and Decimals

MCQ▾

Question

If x% of 96=12 then the value of x is

Choices

Choice (4) Response

a.

8.5

b.

12.5

c.

13.5

d.

10.5

Question number: 26

» Fractions and Decimals

MCQ▾

Question

The value of (113)(114)(115))(116) ………. (11n) is _.

Choices

Choice (4) Response

a.

2n

b.

2(n1)4

c.

1n

d.

2n(n+1)

Question number: 27

» Fractions and Decimals

MCQ▾

Question

If x% of 80=64 , then the value of x is_.

Choices

Choice (4) Response

a.

80

b.

10

c.

20

d.

All of the above

Question number: 28

» Fractions and Decimals

MCQ▾

Question

If 85=a10=20b=45c , Find the value of a, b and c respectively.

Choices

Choice (4) Response

a.

10,18,26

b.

16,12.5,28.1

c.

25,36,45

d.

28,12,39

Question number: 29

» Fractions and Decimals

MCQ▾

Question

How many more squares in the figure must be shaded so that the fraction of shaded squares is 58 ?

An image made by rectangle with some shaded square

An Image Made by Rectangle With Some Shaded Square

Showing an image of rectangle with some shaded square

Choices

Choice (4) Response

a.

10

b.

15

c.

20

d.

5

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