Question

a number exceeds it 2 fourth by 21 find the number​

Answer 1

AnSweR

Let the required no. be x.

${\sf{ ⇒x = \frac{2}{4}x + 21}}$

${\sf{ ⇒x - \frac{2}{4}x = 21 }}$

${\sf{ ⇒ \frac{4x - 2x}{4} = 21 }}$

${\sf{ ⇒ 4x - 2x = 21 \times 4 \: (cross \: multiplicaton)}}$

${\sf{ ⇒ 2x = 84}}$

${\sf{ ⇒ x = { \cancel\frac{84}{2} }}}$

${\sf{ \purple{ \therefore{ x = 42}}}}$