Question

Find the value of $n$ such that $502000000=$$5\cdot 02\times {10}^n$.

• A. $5$
• B. $7$
• C. $-8$
• D. $8$

Answer 1

Answer: (D)

$8$

$50,20,00,000=5\cdot 02\times {10}^8$
Now $5\cdot 02\times {10}^8=5\cdot 02\times {10}^n$
$\therefore n=8$