IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 792 - 796 of 1040

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Question number: 792

» Everyday Mathematics

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MCQ▾

Question

At 3: 00 p. m. on a sunny day, a stick 3 feet tall casts a shadow 7 feet long. At the same time, a tree nearby casts a shadow 55 feet long. What is the height in feet, of the tree?

Choices

Choice (4)Response

a.

12.50 feet

b.

10.25 feet

c.

23.57 feet

d.

21.22 feet

Question number: 793

» Everyday Mathematics

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MCQ▾

Question

Mohan gets 3 marks for each correct answer and loses 2 marks for each wrong answer. He attempts 30 problems and obtains 40 marks. The number of problem solved correctly is________.

Choices

Choice (4)Response

a.

18

b.

21

c.

25

d.

20

Question number: 794

» Everyday Mathematics

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Question

A ladder 10 meters long reaches a window which is 6 meters above the ground on one side of a street. Keeping its foot at the same point, the ladder is turned to other side of the street to reach a window 8 meters high. The width of the street is ________.

Choices

Choice (4)Response

a.

12 m

b.

11 m

c.

14 m

d.

10 m

Question number: 795

» Everyday Mathematics

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MCQ▾

Question

The average age of 5 students is 70 years and their ages are in proportion 3: 5: 7: 9: 11, the age of youngest girl is________.

Choices

Choice (4)Response

a.

30 years

b.

40 years

c.

35 years

d.

10 years

Question number: 796

» Everyday Mathematics

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MCQ▾

Question

Manoj earns 25000 per month. He spends on household items and on education of his children. The amount he saves is________.

Choices

Choice (4)Response

a.

Rs. 10,000

b.

Rs. 6700

c.

Rs. 20,220

d.

Rs. 5370

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