IMO- Mathematics Olympiad Class 10: Questions 572 - 576 of 908

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Question number: 572

» Everyday Mathematics

MCQ▾

Question

Shivam buys a watch for Rs. 1, 60, 000. He pays half of the amount in cash and agrees to pay the balance in 12 annual instalments of Rs. 6000 each. If the rate of interest is 20% and he pays with the instalment the interest due on the unpaid amount, find the total cost of the watch.

Choices

Choice (4) Response

a.

6, 28, 000

b.

5, 27, 750

c.

8, 27, 000

d.

9, 84, 800

Question number: 573

» Everyday Mathematics

MCQ▾

Question

A train 200 meters long moving at a speed of 70 km/hr crosses a train 220 meters long coming from opposite direction in 10 seconds. The speed of second train is ________

Choices

Choice (4) Response

a.

60.7kmhr

b.

50.9kmhr

c.

81.2kmhr

d.

45.2kmhr

Question number: 574

» Arithmetic Progressions

MCQ▾

Question

The arithmetic mean of a number of pair wise distinct prime numbers is 27. Determine the biggest prime among them.

Choices

Choice (4) Response

a.

45

b.

48

c.

46

d.

47

Question number: 575

» Everyday Mathematics

MCQ▾

Question

A dishonest dealer professes to sell his goods at cost price but he uses a false weight and thus gains 60031% . For a kg, he uses a weight of ________

Choices

Choice (4) Response

a.

760 gms

b.

750 gms

c.

860 gms

d.

660 gms

Question number: 576

» Everyday Mathematics

MCQ▾

Question

While selling a watch, a shopkeeper gives a discount of 5% . If he gives a discount of 7% , he earns Rs. 15 less as profit. The marked price of the watch is ________

Choices

Choice (4) Response

a.

Rs. 787.50

b.

Rs. 697.50

c.

Rs. 712.50

d.

Rs. 750

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