Question

someone's height is 147cm after 5% increase find her earlier height​

Answer 1

Answer:

Let's consider the original height to be x.

So, x (height) + 5% of x (height) = 147cm

=> x + $\frac{5x}{100}$ = 147

=> $\frac{100x + 5x}{100}$ = 147

=> $\frac{105x}{100}$ = 147

=> 105x = 147 x 100

=> 105x = 14700

=> x = $\frac{14700}{105}$

=> x = 140

Therefore, her original height was 140cms