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