Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 832 - 838 of 989

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Question 832

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Question

MCQ▾

The radius of a cylinder is doubled but its lateral surface area is unchanged. Then its height must be

Choices

Choice (4)Response

a.

Constant

b.

Doubled

c.

Halved

d.

Trebled

Question 833

Mathematics
Edit

MCQ▾

is a ________.

Choices

Choice (4)Response

a.

Positive rational number

b.

Either positive or negative rational number

c.

Neither positive nor negative rational number

d.

Negative rational number

Question 834

Mathematics
Edit

Question

MCQ▾

The mode of a set of observations is the value which

Choices

Choice (4)Response

a.

Is central

b.

Occurs most frequently

c.

Is between maximum and minimum

d.

None of the above

Question 835

Mathematics
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Question

MCQ▾

The two irrational numbers between and are

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

Question 836

Mathematics
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Question

MCQ▾

The factors of are:

Choices

Choice (4)Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

Question 837

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Question

MCQ▾

A top is of the shape of a cone over a hemisphere. The radius of the hemisphere is 77 cm. The total height of the top is 113 cm. The total area of top is ________.

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

Question 838

Mathematics
Edit

Question

MCQ▾

If , then the value of is

Choices

Choice (4)Response

a.

b.

c.

d.