Adam has some money to buy some stickers.
If he buys 4 stickers, he will have $21 left.
If he buys 14 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
= 14 - 4
= 10
Difference in the amount to pay in both scenarios
= 21 - 11
= 10
Adam needs $10 to buy 10 extra stickers.
Cost of 10 stickers = $10
Cost of 1 sticker = 10 ÷ 10 = $1
(b)
Amount that he has
= Cost of 4 stickers + 21
= 4 x 1 + 21
= 4 + 21
= $25
Answer(s): (a) $1; (b) $25