give solution

Question

The price of onions falls by 25%. By what percent must the onions be increased such that their price is equal to the earlier price?

Answer 1

Maria, think about this with an easy example:  Let the original price = 100

 

So, 100 - .25(100) = .75(100) = 75

 

Now, write last part using this number (75)

 

75 times x = 100 (the original price)

 

Solve for x:

 

x = 100/75 = 1.33, so the price must be increased by 33% to get back to 100, or, 1.33 x 75 = 100