NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 638 - 644 of 2000

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Question number: 638

» Mathematics » Surface Areas & Volumes

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Question

A metallic right circular cone of height 18 cm and base radius 14 cm is melted into a cuboid whose two sides are 22 cm and 12 cm. What is the third side of the cuboid?

Choices

Choice (4) Response

a.

12 cm

b.

28 cm

c.

14 cm

d.

7 cm

Question number: 639

» Mathematics » Surface Areas & Volumes

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Question

The area of the base of a cone is 308 sq cm. Its height is 24 cm. Then its total surface area is ________.

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 640

» Mathematics » Number Systems

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Question

If a and b are two rational numbers, then which of the following statements is wrong?

Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

Question number: 641

» Biology » Fundamentals Unit of Life

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Question

Which of the following possess cilia?

Choices

Choice (4) Response

a.

Yeast

b.

Amoeba

c.

Paramecium

d.

Euglena

Question number: 642

» Mathematics » Surface Areas & Volumes

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MCQ▾

Question

The ratio of the volume and curved surface area of a cylinder of unit radius and unit height

Choices

Choice (4) Response

a.

2: 3

b.

2: 1

c.

1: 2

d.

3: 2

Question number: 643

» Biology » Fundamentals Unit of Life

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MCQ▾

Question

Function of centriole is

Choices

Choice (4) Response

a.

DNA synthesis

b.

Spindle formation

c.

Protein synthesis

d.

RNA synthesis

Question number: 644

» Mathematics » Statistics

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MCQ▾

Question

The average weight of sample of 8 mangoes is 58 g. Later it was found that the weighing machine had shown the weight of each mango 3 g more. The correct average weight of a mango is

Choices

Choice (4) Response

a.

61 g

b.

55 g

c.

66 g

d.

50 g

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