# IMO- Mathematics Olympiad Class 9: Questions 913 - 918 of 919

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## Question number: 913

MCQ▾

### Question

If show that = ________.

### Choices

Choice (4) Response

a.

-1

b.

0

c.

2

d.

1

## Question number: 914

MCQ▾

### Question

If (2, 0) is a solution of the linear equation then the value of k is ________

### Choices

Choice (4) Response

a.

5

b.

2

c.

4

d.

6

## Question number: 915

MCQ▾

### Question

The mean of 18 observations is 30. If the mean of the first 8 observations is 25 and that of the last 10 observations is 34, then the 8th observation is ________

### Choices

Choice (4) Response

a.

68

b.

70

c.

66

d.

58

## Question number: 916

MCQ▾

If and then

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 917

MCQ▾

### Question

According to Euclid, a Line has________

### Choices

Choice (4) Response

a.

Length but no breadth and thickness

b.

Thickness but no breadth and length

c.

No length, no breadth and no thickness

d.

Breadth but no length and thickness

## Question number: 918

MCQ▾

### Question

Mayur bought pencil at Rs. 3 each and y getting cards at 90 paise each. If the pencil cost Rs. 15 more than the cards, the equation involving x and y are ________

### Choices

Choice (4) Response

a.

b.

c.

d.

f Page