Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 861 - 868 of 987

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Question 861

Question MCQ▾

The total surface area of a cylinder is 330 sq cm with height 5.5 cm. Then its volume is

Choices

Choice (4)Response

a.

b.

c.

d.

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Question 862

Question MCQ▾

The perimeter of a rhombus is 96 cm and one of its diagonals is 36 cm. The length of the other diagonal is

Choices

Choice (4)Response

a.

64 cm,

b.

32 cm,

c.

32 cm,

d.

64 cm,

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Question 863

Question MCQ▾

If ‘n’ is an irrational number then ‘3n’ is ________.

Choices

Choice (4)Response

a.

A rational number

b.

An irrational number

c.

A natural number

d.

A whole number

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Question 864

Question MCQ▾

The arithmetic mean of nine given numbers is 16. Their sum is

Choices

Choice (4)Response

a.

72

b.

More than 144

c.

Between 72 and 144

d.

144

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Question 865

Question MCQ▾

In a throw of a dice, the probability of getting a prime number is

Choices

Choice (4)Response

a.

6

b.

c.

2

d.

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Question 866

Question MCQ▾

Which of the following is a rational number (s) ?

Choices

Choice (4)Response

a.

b.

c.

d.

All a., b. and c. are correct

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Question 867

Question MCQ▾

The sides of a triangle are 12 cm, 16 cm and 20 cm. The altitude to shortest side is

Choices

Choice (4)Response

a.

28 cm

b.

36 cm

c.

32 cm

d.

16 cm

Edit

Question 868

Question MCQ▾

The largest sphere is cut off from a cube of side 6 cm. The volume of the sphere will be:

Choices

Choice (4)Response

a.

b.

c.

d.

108

Edit