Question

The value of $\frac{(5{)}^2\times 7^3}{5\times 7^5}$ is __________.

• A. $-\frac{1}{49}$
• B. $49$
• C. $\frac{1}{7}$
• D. $\frac{5}{49}$

Answer 1

Answer: (D)

$\frac{5}{49}$

Given, $\frac{5^2\times 7^3}{5\times 7^5}$

Simplifying this, we get $(5^{2-1}\times 7^{3-5})=\frac{5}{7^2}=\frac{5}{49}$