Question

Christopher bought a new watch at the store when they were having a 2 0 % 20%20, percent off sale. If the regular price of the watch was $ 4 8 $48dollar sign, 48, how much did Christopher pay with the discount?

Answer 1

For this case we can make the following rule of three:
$ 48 ---------> 100%
x ------------> 20%
Clearing x we have:
x = (20/100) * (48)
x = 9.6 $
Then, the price you paid for the watch is:
48 - 9.6 = 38.4 $
Answer:
Christopher did pay 38.4 $ with the discount