Question

After a price increase of 20% the cost of entry to a museum rose to $25.80. Find the original

entry fee

Answer 1

Hi

Let call X the origninal price.

if it rose of 20 % , it's mean that it' be multiplicate by 1.20

so :

X*1,2 = 25.8

1.2X=25.8

As math is all about method and training, I let you have a try and resolve the equation. If you do not know how, ask in comments section.

Answer 2

Answer: 21.5

Step-by-step explanation:

a x 120/100 = 25.8
a x 6/5 = 25.8
a = 25.8 x 5/6
a = 21.5

Where a is the original price.