Linear Equations in One Variable (IMO- Mathematics Olympiad (SOF) Class 8): Questions 35 - 42 of 61

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Question number: 35

» Linear Equations in One Variable

MCQ▾

Solve for

Choices

Choice (4) Response

a.

5

b.

10

c.

12

d.

3

Question number: 36

» Linear Equations in One Variable

MCQ▾

Question

The difference of two numbers a and b is 10 and difference of their cubes is 10. Then find the numbers b.

Choices

Choice (4) Response

a.

i

b.

i

c.

i

d.

i

Question number: 37

» Linear Equations in One Variable

MCQ▾

Question

A number consists of two digits whose sum is 9. If 63 is subtracted to the number, the digits are interchanged. The number is_.

Choices

Choice (4) Response

a.

82

b.

88

c.

18

d.

81

Question number: 38

» Linear Equations in One Variable

MCQ▾

Question

A number consists of two digits whose sum is 5. If 9 is added to the number, the digits are interchanged. The number is_.

Choices

Choice (4) Response

a.

32

b.

23

c.

88

d.

31

Question number: 39

» Linear Equations in One Variable

MCQ▾

Question

The value of for which is_.

Choices

Choice (4) Response

a.

7

b.

c.

6

d.

Question number: 40

» Linear Equations in One Variable

MCQ▾

Solve for

Choices

Choice (4) Response

a.

9

b.

c.

2

d.

1

Question number: 41

» 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 5 hours. The speed of the water is 6.0 km/hr. The speed of the boat in still water is_.

Choices

Choice (4) Response

a.

9 km/hr

b.

19.5 km/hr

c.

5 km/hr

d.

11 km/hr

Question number: 42

» Linear Equations in One Variable

MCQ▾

Question

A number 125 is divided into two parts in the ratio 2: 3. The product of the number is_.

Choices

Choice (4) Response

a.

1550

b.

3750

c.

1250

d.

3211

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