Charlie has some money to buy some stickers.
If he buys 2 stickers, he will have $15 left.
If he buys 4 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
= 4 - 2
= 2
Difference in the amount to pay in both scenarios
= 15 - 11
= 4
Charlie needs $4 to buy 2 extra stickers.
Cost of 2 stickers = $4
Cost of 1 sticker = 4 ÷ 2 = $2
(b)
Amount that he has
= Cost of 2 stickers + 15
= 2 x 2 + 15
= 4 + 15
= $19
Answer(s): (a) $2; (b) $19