IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 23 - 29 of 1022

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Question number: 23

» Number System

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MCQ▾

Question

The average of the two middle rational numbers if are arranged in descending order is________.

Choices

Choice (4)Response

a.

6

b.

1

c.

4

d.

5

Question number: 24

» Number System

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MCQ▾

Question

If p: When a positive integer and a negative integer are added we always get a negative integer.

q: When two negative integers are added, we get a positive integer, then

Choices

Choice (4)Response

a.

P and q are true

b.

P and q are false

c.

p is false and q is true

d.

P is true and q is false

Question number: 25

» Number System

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MCQ▾

Question

Which integer is the additive inverse of itself?

Choices

Choice (4)Response

a.

1

b.

0

c.

2

d.

3

Question number: 26

» Number System

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Question

The value of , where is absolute value of an integer is________.

Choices

Choice (4)Response

a.

2

b.

0

c.

3

d.

1

Question number: 27

» Number System

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MCQ▾

Question

Which pair of numbers does not have a product equal to 45?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 28

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Question

A tank contains 500 liters of water. Due to a small hole in the tank, the quantity of water is decreasing at the rate of 9 liters every hour. What will be the quantity of the water in the tank after 10 hours?

Choices

Choice (4)Response

a.

491 liters

b.

400 liters

c.

410 liters

d.

90 liters

Question number: 29

» Number System

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MCQ▾

Question

For any two rational numbers x and y which of the following are correct, if x is positive and y is negative?

1. X < Y 2. X = Y 3. X > Y

Choices

Choice (4)Response

a.

Only 1 and 2 are correct

b.

Only 3 is correct

c.

Only 2 and 3 are correct

d.

Question does not provide sufficient data or is vague

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