Cubes And Cube Roots

QUESTION: 1

Which of the following is a correct-statement?

A.
cube of a negative number is always positive.
B.
cube of a negative number is always negative.
C.
cube of a negative number may be positive or negative.
D.
all of the above.

Solution:

QUESTION: 2

If the digits in one’s place of number is 2, then the ending digits of its cube will be:

A.
2
B.
4
C.
6
D.
8

Solution:

QUESTION: 3

If the digit in one’s place of a number is 3, then the ending of its cube will be:

A.
3
B.
6
C.
9
D.
7

Solution:

QUESTION: 4

If the digit in one’s place of number is 6, then its cube will end with the digits:

A.
2
B.
3
C.
6
D.
none of these.

Solution:

QUESTION: 5

The volume of a cubical box is 64 cm3. Which of the following is the side of the box?

A.
2 cm
B.
4 cm
C.
6 cm
D.
8 cm

Solution:

QUESTION: 6

Which of the following is a perfect cube?

A.
10,000
B.
243
C.
343
D.
270000

Solution:

QUESTION: 7

If a number is doubled, then which of the following is a correct-statement?

A.
its cube is two times the cube of the given number
B.
its cube is there times the cube of the given number
C.
its cube is six times the cube of the given number
D.
its cube is eight times the cube of the given number.

Solution:

QUESTION: 8

Which of the following is equal to its own cube?

A.
– 1
B.
– 2
C.
– 3
D.
– 9

Solution:

QUESTION: 9

Which of the following is the cube-root of 27000?

A.
30
B.
300
C.
3000
D.
none of these

Solution:

QUESTION: 10

Which of the following is the cube root of -64/243?

A.
7/4
B.
-7/4
C.
4/7
D.
-4/7

Solution:

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Which of the following is a correct-statement?

If the digits in one’s place of number is 2, then the ending digits of its cube will be:

If the digit in one’s place of a number is 3, then the ending of its cube will be:

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