# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 802 - 808 of 929

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## Question number: 802

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MCQ▾

### Question

Coffee worth Rs. 140 per kg and Rs. 160 per kg are mixed with a third variety in the ratio . If the mixture is worth Rs. 180 per kg, the price of the third variety per kg will be

### Choices

Choice (4)Response

a.

Rs. 240

b.

Rs. 230

c.

Rs. 220

d.

Rs. 210

## Question number: 803

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MCQ▾

### Question

A rectangular park 60 m long and 40 m wide has concreate crossroads running in the middle of the park and rest of the park has been used as a lawn. If the area of the lawn is 2109 sq. m, then what is the width of the road?

### Choices

Choice (4)Response

a.

3 m

b.

4 m

c.

6 m

d.

5 m

## Question number: 804

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MCQ▾

### Question

Which number will replace the question mark?

### Choices

Choice (4)Response

a.

30

b.

24

c.

22

d.

26

## Question number: 805

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MCQ▾

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 806

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MCQ▾

### Question

The average of 9 numbers is 8. What should be added as 10th number to make the average 9?

### Choices

Choice (4)Response

a.

10

b.

90

c.

18

d.

72

## Question number: 807

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MCQ▾

### Question

Two distinct ________ in a plane cannot have more than one point in common

### Choices

Choice (4)Response

a.

Points

b.

Lines and points

c.

Lines

d.

None of the above

## Question number: 808

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MCQ▾

### Question

The equation has________

### Choices

Choice (4)Response

a.

Only two solutions

b.

Only one solution

c.

Only three solutions

d.

Infinitely many solutions

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