Adam has some money to buy some stickers.
If he buys 6 stickers, he will need $4 more.
If he buys 9 stickers, he will need $10 more.
- How much does each sticker cost?
- How much money does he have?
(a)
Difference in the number of stickers in both scenarios
= 9 - 6
= 3
Difference in the amount to pay in both scenarios
= 10 - 4
= $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 6 stickers - 4
= 6 x 2 - 4
= 12 - 4
= $8
Answer(s): (a) $2; (b) $8