Adam has some money to buy some stickers.
If he buys 3 stickers, he will need $2 more.
If he buys 9 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
= 9 - 3
= 6
Difference in the amount to pay in both scenarios
= 8 - 2
= $6
Adam needs $6 to buy 6 extra stickers.
Cost of 6 stickers = $6
Cost of 1 sticker = 6 ÷ 6 = $1
(b)
Amount that he has
= Cost of 3 stickers - 2
= 3 x 1 - 2
= 3 - 2
= $1
Answer(s): (a) $1; (b) $1