NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 544 - 550 of 2000

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Question number: 544

» Mathematics » Surface Areas & Volumes

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Question

A cylindrical vessel of diameter 12 cm is partly filled with water. 120 lead balls are dropped in it. The raise in water level is 0.8 cm. The diameter of each ball is ________.

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 545

» Mathematics » Linear Equations in Two Variables

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Question

If and is the solution of the equation , then the value of ‘k’ is ________.

Choices

Choice (4) Response

a.

5

b.

-11

c.

10

d.

-1

Question number: 546

» Mathematics » Number Systems

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Question

Rational number between and is

Choices

Choice (4) Response

a.

b.

c.

1.98

d.

2.8

Question number: 547

» Biology » Fundamentals Unit of Life

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Question

Telomere is

Choices

Choice (4) Response

a.

Not related with chromosome

b.

Lower part of chromosome

c.

Middle part of chromosome

d.

End part of chromosome

Question number: 548

» Mathematics » Constructions

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Question

Two chimneys 16 m and 10 m high stand upright in a ground. If their feet are 8 m apart, then the distance between their tops is

Choices

Choice (4) Response

a.

10 m

b.

24 m

c.

18 m

d.

26 m

Question number: 549

» Mathematics » Number Systems

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Question

The mean of 12 observations is 24.6. If an observation 8 is deleted, the mean of the remaining observations is

Choices

Choice (4) Response

a.

36.6

b.

26.11

c.

12.6

d.

32.6

Question number: 550

» Mathematics » Lines and Angles

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Question

The difference of two complementary angles is . Then the angles are

Choices

Choice (4) Response

a.

b.

c.

d.

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