A book has $1{,}500$ pages. If $50{,}000$ such books are stacked, the total number of pages is

A book has $1{,}500$ pages. If $50{,}000$ such books are stacked, the total number of pages is
  1. $7.5 \times 10^{6}$
  2. $7.5 \times 10^{7}$
  3. $7.5 \times 10^{5}$
  4. $1.5 \times 10^{8}$

Solution

$1.5 \times 10^{3} \times 5 \times 10^{4} = 7.5 \times 10^{7}$.

Asked in: NSO

Practice more EXPONENTS AND POWERS questions on Aicharya