Question

What number increased by 15% equal 161

Answer 1

Answer:

$\Large\boxed{140}$

Step-by-step explanation:

$\sf Let \ x \ be \ the \ number.$

$\sf x \ increased \ by \ 15\% \ is \ 161.$

$x \times (1+15\%)=161$

$x \times (1+0.15)=161$

$x \times (1.15)=161$

$\displaystyle \frac{x \times (1.15)}{1.15}=\frac{161}{1.15}$

$x=140$

Answer 2

Answer:

100%+15% = 115%

proportionally:

x - 100%

161 - 115%

x = (161 * 100%) / 115% = 140