Question

Question 7

The value of $\frac{{10}^{22}+{10}^{20}}{{10}^{20}}$ is
(a) 10
(b) ${10}^{42}$
(c) 101
(d) ${10}^{22}$

Answer 1

We can write the given expression as
$\frac{{10}^{22}}{{10}^{20}}+\frac{{10}^{20}}{{10}^{20}}={10}^{22-20}+1={10}^2+1=10\times 10+1=100+1=101$