IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 108 - 113 of 1042

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Question 108

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Question

MCQ▾

If of a number is 32 more than the original number, then the number is_.

Choices

Choice (4)Response
a.25
b.60
c.70
d.80

Question 109

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Question

MCQ▾

The length of a rectangle is 4 m more than twice of its breadth. The length and breadth of the rectangle if its perimeter is 140 m, is_.

Choices

Choice (4)Response
a.55m, 30m
b.48m, 22m
c.20m, 50m
d.55m, 20m

Question 110

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Question

MCQ▾

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

Choices

Choice (4)Response
a.
b.60
c.
d.

Question 111

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Question

MCQ▾

Two angles in a triangle in the ratio 3: 2. If the sum of these angles is equal to the third angle, then the third angle is_.

Choices

Choice (4)Response
a.
b.
c.
d.

Question 112

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Question

MCQ▾

A man is 5 years older than his wife and his wife is now five times as old as their daughter, who is 8 years old. How old the man when his daughter was born?

Choices

Choice (4)Response
a.37 years
b.30 years
c.40 years
d.35 years

Question 113

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Question

MCQ▾

Rohit was 4 times as old as his son 8 years ago. After 8 years, Rohit will be twice as old as his son. What are their present ages?

Choices

Choice (4)Response
a.10 years, 30 years
b.15 years, 35 years
c.20 years, 50 years
d.16 years, 40 years