Adam has some money to buy some stickers.
If he buys 8 stickers, he will have $13 left.
If he buys 10 stickers, he will need $11 more.
- How much does each sticker cost?
- How much money does he have?
(a)
Difference in the number of stickers in both scenarios
= 10 - 8
= 2
To buy 2 stickers, he needs to use $13 that is left and get an extra of $11.
Difference in the amount to pay in both scenarios
= 13 + 11
= $24
Adam needs $24 to buy 2 extra stickers .
Cost of 2 stickers = $24
Cost of 1 sticker = 24 ÷ 2 = $12
(b)
Amount that he has
= Cost of 8 stickers + 13
= 8 x 12 + 13
= 96 + 13
= $109
Answer(s): (a) $12; (b) $109