Question

A number became 90 when incresed by 20% what is the number

Answer 1

the answer will be 80
because 80 + 20%of 80= 90

Answer 2

$\bold\red{75}$

see how:

Let the number be x

20% of x:

$\frac{20}{100} \times x$

➡20% of x + x

➡ $\frac{120x}{100}$

Given that:

$\frac{120x}{100} = 90$

Therefore,

x = 900/12 = 75

Hence, the number is $\bold{75}$