Powered Numbers

Q. If the length of a rectangle is $4x$ and its breadth is $2x$, then the area of the rectangle is:

1. $6x$
2. $6x^2$
3. $8x$
4. $8x^2$

Q. $a,2b,3c.$

1. 6abc
2. 6-abc
3. 6ab
4. abc

Q. How do we read the term : "$y^8$" in words?

1. 8 raised to the power y
2. y raised to the power 8
3. 8 times y
4. $y$ with index 8

Q. If each side of a square, of side a, is doubled, find the new area.

1. $a^2$
2. $a^4$
3. 4$a^2$
4. 4$a^4$