NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 472 - 478 of 2000

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Question number: 472

» Mathematics » Number Systems

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MCQ▾

Question

A set of real numbers does not satisfy the property of

Choices

Choice (4) Response

a.

Multiplicative identity

b.

Multiplicative inverse

c.

Additive inverse

d.

None of the above

Question number: 473

» Mathematics » Constructions

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MCQ▾

Question

The number of independent measurements required to construct a triangle is

Choices

Choice (4) Response

a.

5

b.

3

c.

2

d.

4

Question number: 474

» Mathematics » Constructions

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MCQ▾

Question

If the two sides of a right angled triangle are equal and the square of the hypotenuse is 162 cm then the length of each side is

Choices

Choice (4) Response

a.

cm

b.

18 cm

c.

3 cm

d.

9 cm

Question number: 475

» Mathematics » Surface Areas & Volumes

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MCQ▾

Question

The diameter of a copper sphere is 36 cm. It is beaten and drawn into a wire of diameter 0.6 cm. The length of wire is ________.

Choices

Choice (4) Response

a.

21600 cm

b.

43200 cm

c.

32400 cm

d.

86400 cm

Question number: 476

» Mathematics » Polynomials

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MCQ▾

Question

The product of and is:

Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

Question number: 477

» Mathematics » Surface Areas & Volumes

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MCQ▾

Question

A hollow spherical ball whose inner radius is 2 cm is full of water. Half of the water is transferred to a conical cup and it completely filled the cup. If the height of the cup is 4 cm, then the radius of the base of cone, in cm is

Choices

Choice (4) Response

a.

4

b.

16

c.

2

d.

Question number: 478

» Mathematics » Statistics

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MCQ▾

Question

The mean of 7 observations is 58. If one observation, namely 4 is deleted, the new mean is

Choices

Choice (4) Response

a.

61

b.

62

c.

65

d.

67

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