Question

Vendí por 30€ a la cual le había incrementado el 12% una prenda de ropa. Calcula el precio de la prenda antes del incremento.

Answer 1

18€

Explanation:

Given data

Selling price= €30

increase= 12%

Cost price= ???

We know that

% increase= selling price- cost price/cost price*100

let the cost price be x

12= 30- x/x*100

cross multiply

12*100= (30- x)100

1200= 3000-100x

1200-3000=-100x

-1800=-100x

x= 1800/100

x= 18

Hence the price before the increase is 18€