Question

$10y(6y+21)÷5(2y+7)$ = _________.

• A. $10y$
• B. $6y$
• C. $(2y+7)$
• D. $(6y+21)$

Answer 1

The correct option is B $6y$

Given, $10y(6y+21)÷5(2y+7)$
$\Rightarrow$ $\frac{10y(6y+21)}{5(2y+7)}$
= $\frac{2\times 5\times y\times 3\times (2y+7)}{5\times (2y+7)}$
= $6y$