NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1163 - 1169 of 2028

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Question 1163

Question

MCQ▾

If the ratio of area of two circles is 16: 25 the ratio of their circumference is:

Choices

Choice (4)Response

a.

4: 5

b.

5: 4

c.

3: 5

d.

25: 16

Question 1164

Question

MCQ▾

A wheel that has 6 cogs is meshed with a larger wheel of 14 cogs. When the smaller wheel has made 21 revolutions, then the number of revolutions made by the larger wheel is:

Choices

Choice (4)Response

a.

49

b.

9

c.

4

d.

12

Question 1165

Question

MCQ▾

The value of is:

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

Question 1166

Question

MCQ▾

The average of the middle two rational numbers if are arranged in ascending order is

Choices

Choice (4)Response

a.

b.

c.

d.

Question 1167

Question

MCQ▾

A certain number of men can finish a piece of work in 100 days. If there were 10 men less, it would take 10 days more for the work to be finished. How many men were there originally?

Choices

Choice (4)Response

a.

75

b.

82

c.

110

d.

100

Question 1168

Question

MCQ▾

Which of the following fibre is made of coal, air and water?

Choices

Choice (4)Response

a.

Rayon

b.

Polyester

c.

Terrycot

d.

Nylon

Question 1169

Question

MCQ▾

The real factors of are:

Choices

Choice (4)Response

a.

Does not exist

b.

c.

d.

Question does not provide sufficient data or is vague

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