Multiples and Powers

Q.

which of the following indicates sum of 5 taken 6 times ?

1. $6\times 5$

2. $6^5$

3. $6^{\prime }5$

4. $5^6$

Q.

Evaluate $(102{)}^2$

1. xy

2. y

3. x

4. 

Q.

$a^0=0$ where $a<0$ State whether true or false.

1. False

2. True

Q.

Write 102 as the sum of the powers of 2

1. $2^6+2^5+2^2+2^1$

2. $2^6+2^5+2^2+2^5$

3. $2^7+2^5+2^2+2^1$

4. $2^6+2^5+2^2+2^1+2^0$

Q.

Write the following variables as powers.

$a\times a\times a\times c\times c\times c$

Q. A student was asked to multiply a certain number by 3 and to add 2 to it, but he divided the number by 3 and subtracted 2 from it and got the number 1. The correct answer is

1. 9
2. 25
3. 29
4. none of these

Q.

Write 16 as the sum of the powers of 2.

1. $2+2^2+2^3+2$

2. $2^2+2^2+2^3$

3. $2^3+2^2+2^3$

4. $2^2+2+2^3$

Q.

which of the following indicates the product of 5 taken 6 times ?

1. $6^{\prime }5$

2. $5^6$

3. $6\times 5$

4. $6^5$

Q.

In $8^9,9$ is the ______.

1. power
2. base
3. number
4. none