Adam has some money to buy some stickers.
If he buys 3 stickers, he will have $15 left.
If he buys 5 stickers, he will have $3 left.
- How much does each sticker cost?
- How much money does he have?
(a)
Difference in the number of stickers in both scenarios
= 5 - 3
= 2
Difference in the amount to pay in both scenarios
= 15 - 3
= 12
Adam needs $12 to buy 2 extra stickers.
Cost of 2 stickers = $12
Cost of 1 sticker = 12 ÷ 2 = $6
(b)
Amount that he has
= Cost of 3 stickers + 15
= 3 x 6 + 15
= 18 + 15
= $33
Answer(s): (a) $6; (b) $33