a x a x a x a x a is equal to

(a)

a⁵

(b)

5^a

(c)

5a

(d)

a + 5

The exponential form of 72 is

(a)

7²

(b)

2⁷

(c)

2² x 3³

(d)

2³ x 3²

The value of x in the equation a¹³ = x³ x a¹⁰ is

(a)

a

(b)

13

(c)

3

(d)

10

How many zeros are there in 100¹⁰?

(a)

2

(b)

3

(c)

10

(d)

20

2⁴⁰ + 2⁴⁰ is equal to

(a)

4⁴⁰

(b)

2⁸⁰

(c)

2⁴¹

(d)

4⁸⁰