Question

CDs are on sale at the local music store for $12.80 each. They normally sell for $16.00 each. Ann buys three CDs for a total of $38.40. What percent discount did she receive?

Answer 1

$16.00*3=$48.00
$12.80*3=$38.40
$48.00-$38.40=$9.60
$9.60 saved dollar value
$48.00=100%
I can't do the rest in my head give me a minute to get a calculator

Answer 2

Percent discount Ann received is 20%.

Explanation:

CDs are on sale at the local music store costing $12.80 each.

Normally selling price of the CDs = $16 each.

Anna buys 3 CDs for a total of $38.40

Costing price of one CD =
`(38.40)/(3)=12.8`

Discount on every CD = 16 - 12.80 = $3.20

Now percentage discount on the CD =
`\frac{\text{Discount}}{\text{Total cost at normal rates}}`×100

=
`(3.20)/(16)* 100`

= 20%

Therefore, percent discount Ann received is 20%.