Respuesta :
Answer:
Step-by-step explanation:
Let the price before the increase = £ x
(100+20)% of x = £156
120% of x = 156
[tex]\frac{120}{100}*x=156\\\\x=156*\frac{100}{120}\\[/tex]
x = £ 130
Before the increase it was 100%
So 20+100=120
156/120*100=130$
Don’t do it like 20/100 *156 and then minus it from 156 because you will get a wrong answer
So 20+100=120
156/120*100=130$
Don’t do it like 20/100 *156 and then minus it from 156 because you will get a wrong answer