IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 71 - 77 of 1040

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Question number: 71

» Linear Equations in One Variable

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MCQ▾

Question

There were only two candidates in an election. One got 72 % votes and was elected by a margin of 880 votes. The total number of voters were_.

Choices

Choice (4)Response

a.

500

b.

2000

c.

3000

d.

1000

Question number: 72

» Linear Equations in One Variable

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MCQ▾

Question

The sum of two numbers is 13 and difference of their squares is 13. The difference of the numbers is?

Choices

Choice (4)Response

a.

3

b.

0

c.

1

d.

2

Question number: 73

» Linear Equations in One Variable

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MCQ▾

Question

The value of for which is_.

Choices

Choice (4)Response

a.

18

b.

35

c.

d.

Question number: 74

» Linear Equations in One Variable

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MCQ▾

Question

A number 121 is divided into two parts in the ratio 6: 5. The product of the number is_.

Choices

Choice (4)Response

a.

3211

b.

3750

c.

3630

d.

1550

Question number: 75

» Linear Equations in One Variable

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MCQ▾

Question

Solution of the equation is_.

Choices

Choice (4)Response

a.

5

b.

0

c.

1

d.

-5

Question number: 76

» Linear Equations in One Variable

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MCQ▾

Question

A number 100 is divided into two parts in the ratio 3: 2. The product of the number is_.

Choices

Choice (4)Response

a.

2400

b.

2700

c.

2600

d.

1500

Question number: 77

» Linear Equations in One Variable

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MCQ▾

Question

A motor boat covers a certain distance downstream in a river in 1 hours. It covers the same distance upstream in 1 and half hours. The speed of the water is 2 km/hr. The speed of the boat in still water is_.

Choices

Choice (4)Response

a.

11 km/hr

b.

12 km/hr

c.

5 km/hr

d.

10 km/hr

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