The local electronics store is holding a 20off sale on all i

The local electronics store is holding a 20%-off sale on all its products. Marla selects 2 CDs at the original price of $16.99 each. What is the price of the two CDs after the 20% discount?

Solution

Calculate the cost of the two CDs:

$16.99 × 2 = $33.98

Reduce that amount by 20% by multiplying the total cost by 0.20:

0.20 × 33.98 = $6.80

Subtract $6.80 from the original cost:

$33.98 – $6.80 = $27.18

A faster way to do this (and speed is important on the ASVAB) is to multiply the original cost by 80% or 0.80 because that is the cost of the items after the discount.

0.80 × $33.98 = $27.18