Everyday Mathematics (IMO- Mathematics Olympiad (SOF) Class 9): Questions 39 - 44 of 99

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Question number: 39

» Everyday Mathematics

MCQ▾

Question

If 100 men can do a job in 80 days, in how many days will 120 men do it in ________.

Choices

Choice (4) Response

a.

69 days

b.

67 days

c.

65 days

d.

63 days

Question number: 40

» Everyday Mathematics

MCQ▾

Question

The compound interest on Rs. 80000 at per annum for 9 months, compound quarterly is ________

Choices

Choice (4) Response

a.

Rs. 15610

b.

Rs. 12610

c.

Rs. 14610

d.

Rs. 13610

Question number: 41

» Everyday Mathematics

MCQ▾

Question

A man rows downstream 30 km and upstream 18 km, taking 5 hours each time. The velocity of current is ________

Choices

Choice (4) Response

a.

6 km/hr

b.

1.2 km/hr

c.

3.6 km/hr

d.

2.4 km/hr

Question number: 42

» Everyday Mathematics

MCQ▾

Question

Sumer Singh purchased 100 reams of papers at Rs. 50 per ream. He spent Rs. 250 on transportation, paid octroi at the rate of 30 paise per ream and paid Rs. 60 to the coolie. If he wants to have a gain of , what must be the selling price per ream?

Choices

Choice (4) Response

a.

Rs. 58.74

b.

Rs. 79.45

c.

Rs. 86.65

d.

Rs. 90.64

Question number: 43

» Everyday Mathematics

MCQ▾

Question

Riddhi cut a cake in two equal parts and one of these two pieces is again cut into equal parts. Each small parts is of 60 grams. If there are six parts of the whole cake, what was the weight of the original cake?

Choices

Choice (4) Response

a.

140 grams

b.

280 grams

c.

600 grams

d.

300 grams

Question number: 44

» Everyday Mathematics

MCQ▾

Question

One quality of wheat at Rs. 9.30 per kg is mixed with another quality at a certain rate in the ratio. If the mixture so formed be worth Rs. 10 per kg, what is the rate per kg of the second quality of wheat?

Choices

Choice (4) Response

a.

Rs. 10.60

b.

Rs. 10.30

c.

Rs. 11

d.

Rs. 10.80

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