Adam has some money to buy some stickers.
If he buys 4 stickers, he will need $2 more.
If he buys 7 stickers, he will need $8 more.
- How much does each sticker cost?
- How much money does he have?
(a)
Difference in the number of stickers in both scenarios
= 7 - 4
= 3
Difference in the amount to pay in both scenarios
= 8 - 2
= $6
Adam needs $6 to buy 3 extra stickers.
Cost of 3 stickers = $6
Cost of 1 sticker = 6 ÷ 3 = $2
(b)
Amount that he has
= Cost of 4 stickers - 2
= 4 x 2 - 2
= 8 - 2
= $6
Answer(s): (a) $2; (b) $6