Linear Equations in One Variable (IMO- Mathematics Olympiad Class 8): Questions 54 - 60 of 61

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Question number: 54

» Linear Equations in One Variable

MCQ▾

Question

If the angles of a triangle are in the ratio 3: 2: 1, then the difference between the greatest and smallest angles is_.

Choices

Choice (4) Response

a.

45°

b.

90°

c.

30°

d.

60 °

Question number: 55

» Linear Equations in One Variable

MCQ▾

Question

A number consists of two digits whose sum is 10. If 18 is added to the number, the digits are interchanged. The number is_.

Choices

Choice (4) Response

a.

26

b.

46

c.

62

d.

64

Question number: 56

» Linear Equations in One Variable

MCQ▾

Question

The value of x for which 5x22x+5=52 is_.

Choices

Choice (4) Response

a.

2120

b.

2021

c.

21

d.

20

Question number: 57

» Linear Equations in One Variable

MCQ▾

Question

The length of a rectangle is 5 m less than three times its breadth. The length and breadth of the rectangle if its perimeter is 150 m, is_.

Choices

Choice (4) Response

a.

55m, 20m

b.

30m, 20m

c.

55m, 30m

d.

20m, 50m

Question number: 58

» Linear Equations in One Variable

MCQ▾

Question

A man is 6 years older than his wife and his wife is now thrice as old as their daughter, who is 10 years old. How old the man when his daughter was born?

Choices

Choice (4) Response

a.

26 years

b.

25 years

c.

22 years

d.

20 years

Question number: 59

» Linear Equations in One Variable

MCQ▾

Question

Solution of the equation 5(2x+1)3(x+1)=5(x2)3(2x1)+9x is_.

Choices

Choice (4) Response

a.

5

b.

9

c.

10

d.

3

Question number: 60

» Linear Equations in One Variable

Appeared in Year: 2012

MCQ▾

Question

Solve for x:x[2x5x13]=x13+12

Choices

Choice (4) Response

a.

32

b.

12

c.

20

d.

31

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