选择题
2005 AMC 8 Problem 2: Folder Sale Savings
Karl bought five folders from Pay-A-Lot at a cost of $2.50 each. Pay-A-Lot had a 20%-off sale the following day. How much could Karl have saved on the purchase by waiting a day?
A.
$1.00
B.
$2.00
C.
$2.50
D.
$2.75
E.
$5.00