Mathematics-Cube and Cube Roots (NSTSE (National Science Talent Search Exam- Unified Council) Class 8): Questions 1 - 9 of 64

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Question number: 1

» Mathematics » Cube and Cube Roots

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Question

If 225K is a perfect cube, then the value of K is:

Choices

Choice (4) Response

a.

3

b.

5

c.

15

d.

14

Question number: 2

» Mathematics » Cube and Cube Roots

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Question

If , the least value of ‘a’ is:

Choices

Choice (4) Response

a.

6

b.

3

c.

9

d.

Question does not provide sufficient data or is vague

Question number: 3

» Mathematics » Cube and Cube Roots

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Question

The cube of a number is 64 times the cube of another number. If the sum of the cubes of numbers is 8125, the difference of the numbers is:

Choices

Choice (4) Response

a.

15

b.

20

c.

12

d.

5

Question number: 4

» Mathematics » Cube and Cube Roots

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Question

The radius of a sphere is 2.1 m. Its volume is:

Choices

Choice (4) Response

a.

38.808

b.

38.808

c.

38.808 cu m

d.

38.808 cu cm

Question number: 5

» Mathematics » Cube and Cube Roots

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Question

Given that 729 = and 4.096 = , find the value of .

Choices

Choice (4) Response

a.

14.4

b.

14

c.

4.8

d.

27.5

Question number: 6

» Mathematics » Cube and Cube Roots

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MCQ▾

Question

The value of is:

Choices

Choice (4) Response

a.

-35

b.

21

c.

35

d.

-21

Question number: 7

» Mathematics » Cube and Cube Roots

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MCQ▾

Question

Calculate the value of .

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 8

» Mathematics » Cube and Cube Roots

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MCQ▾

Question

If 196K is a perfect cube, then the value of K is:

Choices

Choice (4) Response

a.

5

b.

6

c.

14

d.

7

Question number: 9

» Mathematics » Cube and Cube Roots

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MCQ▾

Question

The length of each side of a cubical box is 3.2 cm. Its volume is:

Choices

Choice (4) Response

a.

32.77

b.

32.77 cu m

c.

32.77 cu cm

d.

32.77

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