Question

A $220 tablet is on sale at half price for $110. You have a coupon for 20% off the sale price. If you use your coupon to buy the tablet, what percent of the original price will you pay?

Answer 1

ok so $220 is the original price
$110 is the sale price
20% is applicable for the sale price

$110×0.2 (20%=
`(20)/(100)` = 0.2)
= $22

Original price ×
`(n)/(100)` = 22
220 ×
`(n)/(100)` = 22

`(n)/(100)` = 0.1
n = 100×0.1
n=10%
We pay 10% of the original price.
Check: 220 × 0.1 (10%=
`(10)/(100)` = 0.1)
=$22