IMO- Mathematics Olympiad Class 8: Questions 70 - 77 of 1029

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Question number: 70

» Linear Equations in One Variable

MCQ▾

Question

(43)rd Of a number multiplied by 316 of the same number make 25. The number is_.

Choices

Choice (4) Response
a.

1

b.

100

c.

1000

d.

10

Question number: 71

» 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: 72

» 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: 73

» Linear Equations in One Variable

MCQ▾

Question

The value of x for which 7x+27x2=72 is_.

Choices

Choice (4) Response
a.

1835

b.

18

c.

3518

d.

35

Question number: 74

» 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

Question number: 75

» Linear Equations in One Variable

MCQ▾

Question

Solution of the equation 2(x1)3(4x+1)=2(x1)3(5x4)+6x is_.

Choices

Choice (4) Response
a.

5

b.

0

c.

-5

d.

1

Question number: 76

» Linear Equations in One Variable

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.

1500

d.

2600

Question number: 77

» Linear Equations in One Variable

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.

10 km/hr

b.

12 km/hr

c.

11 km/hr

d.

5 km/hr

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