IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 101 - 107 of 1042

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Question 101

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Question

MCQ▾

Solve for

Choices

Choice (4)Response
a.9
b.2
c.1
d.

Question 102

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Question

MCQ▾

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.5 km/hr
b.9 km/hr
c.11 km/hr
d.19.5 km/hr

Question 103

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Question

MCQ▾

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.3211
c.1250
d.3750

Question 104

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Question

MCQ▾

If the angles of a triangle are in the ratio 2: 4: 6, then the summation of the greatest and smallest angles is_.

Choices

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

Question 105

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Question

MCQ▾

Of a number divided by of a square of same number make . The number is_.

Choices

Choice (4)Response
a.25
b.20
c.50
d.75

Question 106

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Question

MCQ▾

5 years ago a father’s age is 3 times greater to his son’s age. In present age of a son is 15 years then how old the father is?

Choices

Choice (4)Response
a.47 years
b.44 years
c.40 years
d.35 years

Question 107

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Question

MCQ▾

Find two consecutive negative integer, whose product is 90.

Choices

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