Charlie has some money to buy 10 stickers
but he buys only 3 stickers and has $28 left.
- How much does each sticker cost?
- How much money does he have?
(a)
Number of stickers that Charlie has not bought
= 10 - 3
= 7
Cost of 7 stickers = $28
Cost of 1 sticker = 28 ÷ 7 = $4
(b)
Amount that Charlie has
= Cost of 10 stickers
= 10 x 4
= $40
Answer(s): (a) $4; (b) $40