Adam has some money to buy some stickers.
If he buys 8 stickers, he will have $15 left.
If he buys 13 stickers, he will need $5 more.
- How much does each sticker cost?
- How much money does he have?
(a)
Difference in the number of stickers in both scenarios
= 13 - 8
= 5
To buy 5 stickers, he needs to use $15 that is left and get an extra of $5.
Difference in the amount to pay in both scenarios
= 15 + 5
= $20
Adam needs $20 to buy 5 extra stickers .
Cost of 5 stickers = $20
Cost of 1 sticker = 20 ÷ 5 = $4
(b)
Amount that he has
= Cost of 8 stickers + 15
= 8 x 4 + 15
= 32 + 15
= $47
Answer(s): (a) $4; (b) $47