Question

When expanded, the number of zeroes in ${1000}^{10}$ is ______.

• A. 13
• B. 30
• C. 4
• D. 10

Answer 1

The correct option is B 30

The number of zeroes in ${10}^n$ is $n$.
$1000={10}^3$
$\therefore {1000}^{10}={\left({10}^3\right)}^{10}$
$={10}^{3\times 10}$
$={10}^{30}$

Thus, ${1000}^{10}$ has 30 zeroes.