IMO- Mathematics Olympiad Class 8: Questions 855 - 860 of 1029

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Question number: 855

» Everyday Mathematics

MCQ▾

Question

Reena goes to a shop to buy a saree costing Rs. 500 including sales tax of 5%. He asks the shopkeeper to reduce the price of the watch so that he can save an amount equal to the sales tax. The reduction in the price of the saree is________.

Choices

Choice (4) Response
a.

Rs 25

b.

Rs 12

c.

Rs 20

d. None of the above

Question number: 856

» Everyday Mathematics

MCQ▾

Question

A 20 m pole casts a 5 m shadow. If, at the same time of day, a building casts a shadow of 20 m, how high is the building?

Choices

Choice (4) Response
a.

20 m

b.

50 m

c.

80 m

d.

60 m

Question number: 857

» Everyday Mathematics

MCQ▾

Question

A stick 2 feet tall casts a shadow 5 feet long. At the same time, a tree nearby casts a shadow 60 feet long. What is the height, in feet, of the tree?

Choices

Choice (4) Response
a.

21 feet

b.

24 feet

c.

23 feet

d.

25 feet

Question number: 858

» Everyday Mathematics

MCQ▾

Question

A person who is 5 feet tall is standing 112 feet from the base of a tree, and the tree casts a 110 foot shadow. The person’s shadow is 11 feet in length. What is the height of the tree?

Choices

Choice (4) Response
a.

20 feet

b.

40 feet

c.

50 feet

d. All of the above

Question number: 859

» Everyday Mathematics

MCQ▾

Question

The difference between compound interest and simple interest for 3 years@20 % p. a. is Rs. 152. What is the principal lent in each case?

Choices

Choice (4) Response
a.

1185 Rs

b.

1182 Rs

c.

11876.5 Rs

d.

1285 Rs

Question number: 860

» Everyday Mathematics

MCQ▾

Question

A merchant has 140 liters, 260 liters and 320 liters of three kinds of oil. He wants to sell the oil by filling the three kinds of oil separately in tins of equal volumes. The volume of such a tin is________.

Choices

Choice (4) Response
a.

10 cm3

b.

15 cm3

c.

20 cm3

d.

30 cm3

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