Charlie has some money to buy some stickers.
If he buys 3 stickers, he will have $20 left.
If he buys 6 stickers, he will have $11 left.
- How much does each sticker cost?
- How much money does he have?
(a)
Difference in the number of stickers in both scenarios
= 6 - 3
= 3
Difference in the amount to pay in both scenarios
= 20 - 11
= 9
Charlie needs $9 to buy 3 extra stickers.
Cost of 3 stickers = $9
Cost of 1 sticker = 9 ÷ 3 = $3
(b)
Amount that he has
= Cost of 3 stickers + 20
= 3 x 3 + 20
= 9 + 20
= $29
Answer(s): (a) $3; (b) $29