Exponents And Powers : Maths MCQ Practice Questions & Answers (English)

MathsEasyExponents And Powers

1.

The value of 20 × 30 × 40 is

A

1

B

24

C

None of these

MathsEasyExponents And Powers

2.

64 is the multiplicative inverse of

A

4

B

2-8

C

82

D

(1/8)2

MathsEasyExponents And Powers

3.

32 is the multiplicative inverse of

A

(1/2)3

B

(1/9)

C

(1/3)-2

D

6

MathsEasyExponents And Powers

4.

Which one of the following is the value of 35

A

243

B

3

C

15

D

2

MathsEasyExponents And Powers

5.

The standard form of 9030000000 is given by

A

$9.03 \times 10^{-9}$

B

$9.03 \times 10^{9}$

C

$90.3 \times 10^{7}$

D

$903 \times 10^{6}$

MathsEasyExponents And Powers

6.

13 × 10-7 Km is the standard form of which of the following

A

0.00000000013 Km

B

0.000000013 Km

C

0.0000013 Km

D

0.000000000013 Km

MathsEasyExponents And Powers

7.

Charge of an electron is 0.000,000,000,000,000,000,16 coulomb and in exponential form it can be written as

A

16 × 10-21 coulomb

B

16 × 10-18 coulomb

C

1.6 × 10-21 coulomb

D

1.6 × 10-19 coulomb

MathsEasyExponents And Powers

8.

The number 86,800,000,000,000,000,000,000,000 Kg is equals to

A

$868 \times 10^{-23}$ m

B

$8.68 \times 10^{25}$ K

C

$868 \times 10^{23}$ Kg

D

$86.8 \times 10^{-25}$ Kg

MathsEasyExponents And Powers

9.

Usual form of the expression 9 X 10-5 is given by

A

$0.09 \times 10^{-3}$

B

9.0E-5

C

9.0E-6

D

$90 \times 10^{-4}$

MathsEasyExponents And Powers

10.

In standard form 56700000 is written as

A

$567 \times 10^{4}$

B

$5.67 \times 10^{7}$

C

$567 \times 10^{7}$

D

$5.67 \times 10^{5}$

MathsEasyExponents And Powers

11.

The value of (1/3)-2 is

A

9

B

(-2/3)

C

(1/9)

MathsEasyExponents And Powers

12.

The expression , ( 5-1 + 7-1 + 3-1 )0 is equals to

A

15-3

B

-3

C

15-1

D

1

MathsEasyExponents And Powers

13.

In exponential form 140,000,000,000 Kg is given by

A

$1.4 \times 10^{10}$ Kg

B

$1.4 \times 10^{9}$ Kg

C

$14 \times 10^{8}$ Kg

D

$1.4 \times 10^{11}$ Kg

MathsEasyExponents And Powers

14.

The value of (1/5)-3 is equal to

A

-3

B

125

C

-15

D

(1/5)

MathsEasyExponents And Powers

15.

The value of 82 ÷ 23 is given by

A

(1/4)

B

8

C

(1/8)

D

-8

MathsEasyExponents And Powers

16.

Value of ( 23 )2 is given by

A

64

B

32

C

12

D

None of these

MathsEasyExponents And Powers

17.

Multiplicative inverse of 5-2 is

A

-10

B

25

C

3

D

7

MathsEasyExponents And Powers

18.

The value of 10000 is

A

1000

B

1

C

None of these

MathsEasyExponents And Powers

19.

The Base in the expression 8100 is

A

10

B

100

C

8

D

800

MathsEasyExponents And Powers

20.

The value of 72 is

A

7

B

49

C

2

D

14

Exponents And Powers in Maths : Practice MCQ Questions & Answers with Explanations