Question

A one-pound pack of wall putty costs $3. A 10-pound pack costs $24. What is the percent savings If you buy the 10-pound pack? 2096 24% 25% 60%

Answer 1

20%

Explanation:

let x = percent savings

$3/lb (cost per lb of a 1 lb pack)

$24/10lb = $2.40/lb (cost per lb for a 10 lb pack)

$3 - $3x = $2.40

-3x = -0.60

x = -0.60/3 = 0.20

0.20 x 100 = 20%