# Linear Equations in One Variable (IMO- Mathematics Olympiad Class 8): Questions 7 - 13 of 61

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## Question number: 7

» Linear Equations in One Variable

MCQ▾

### Question

The length of a rectangle is 6 m more than twice of its breadth. The length and breadth of the rectangle if its perimeter is 162 m, is_.

### Choices

Choice (4) Response

a.

55m, 30m

b.

56m, 25m

c.

55m, 20m

d.

48m, 22m

## Question number: 8

» Linear Equations in One Variable

MCQ▾

### Question

A motor boat covers a certain distance downstream in a river in 3 hours. It covers the same distance upstream in 3 and half hours. The speed of the water is 1.5 km/hr. The speed of the boat in still water is_.

### Choices

Choice (4) Response

a.

19.5 km/hr

b.

10 km/hr

c.

5 km/hr

d.

11 km/hr

## Question number: 9

» Linear Equations in One Variable

MCQ▾

### Question

Of a number multiplied by of the same number make 25. The number is_.

### Choices

Choice (4) Response

a.

1

b.

100

c.

1000

d.

10

## Question number: 10

» Linear Equations in One Variable

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.

1000

b.

2000

c.

500

d.

3000

## Question number: 11

» Linear Equations in One Variable

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.

1

b.

2

c.

0

d.

3

## Question number: 12

» Linear Equations in One Variable

MCQ▾

### Question

The value of for which is_.

### Choices

Choice (4) Response

a.

b.

18

c.

d.

35

## Question number: 13

» Linear Equations in One Variable

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.

1550

c.

3750

d.

3630

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