Question

What is the original price of an apple if you got a 20% discount and paid $1 for it

Answer 1

Answer: $1.25

==============================================

Step-by-step explanation

x = original price

If you get a 20% discount, then you pay the remaining 80%

Therefore, 0.80x represents the price after the discount.

0.80x = 1

x = 1/0.80

x = 1.25

The original price was $1.25

Note that 20% of this is 0.20*1.25 = 0.25, which is the amount saved. Therefore, 1.25 - 0.25 = 1 dollar is the final price after the discount. This helps us confirm the answer.

Another way to confirm the answer is to write:

0.80x = 0.80*1.25 = 1