NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 1045 - 1050 of 2000

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Question number: 1045

» Mathematics » Constructions

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Question

The top of a broken tree touches the ground at a distance of 40 m from its base. If the tree is broken at a height of 9 m from the ground, then the actual height of the tree is

Choices

Choice (4) Response

a.

90 m

b.

81 m

c.

49 m

d.

50 m

Question number: 1046

» Mathematics » Number Systems

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Question

What is the percentage of least number in the greatest number if are arranged in ascending or descending order?

Choices

Choice (4) Response

a.

40%

b.

c.

35%

d.

Question number: 1047

» Mathematics » Surface Areas & Volumes

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Question

A cone of radius 25 cm is divided into two parts by drawing a plane through the midpoints of its axis, parallel to its base. The ratio of volumes of the two parts formed is ________.

Choices

Choice (4) Response

a.

5: 1

b.

12: 1

c.

1: 7

d.

1: 14

Question number: 1048

» Mathematics » Statistics

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Question

The sum of 20 numbers is 580. The mean of those numbers is

Choices

Choice (4) Response

a.

21

b.

19

c.

29

d.

58

Question number: 1049

» Mathematics » Surface Areas & Volumes

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Question

A cylindrical vessel of diameter 72 cm has some water in it. A cylindrical iron piece of diameter 12 cm and height 36 cm is dropped in it. After it was completely immersed, the raise in the level of water is ________.

Choices

Choice (4) Response

a.

3 cm

b.

6 cm

c.

1 cm

d.

9 cm

Question number: 1050

» Mathematics » Surface Areas & Volumes

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Question

With a bucket of radius 28 cm and height 2 cm, 6 buckets of lime was poured to form a conical heap. If its area is , the canvas required to cover it is ________.

Choices

Choice (4) Response

a.

b.

c.

d.

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