Adam has some money to buy some stickers.
If he buys 3 stickers, he will have $13 left.
If he buys 5 stickers, he will have $5 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
= 13 - 5
= 8
Adam needs $8 to buy 2 extra stickers.
Cost of 2 stickers = $8
Cost of 1 sticker = 8 ÷ 2 = $4
(b)
Amount that he has
= Cost of 3 stickers + 13
= 3 x 4 + 13
= 12 + 13
= $25
Answer(s): (a) $4; (b) $25