Adam has some money to buy some stickers.
If he buys 9 stickers, he will have $8 left.
If he buys 11 stickers, he will need $4 more.
- How much does each sticker cost?
- How much money does he have?
(a)
Difference in the number of stickers in both scenarios
= 11 - 9
= 2
To buy 2 stickers, he needs to use $8 that is left and get an extra of $4.
Difference in the amount to pay in both scenarios
= 8 + 4
= $12
Adam needs $12 to buy 2 extra stickers .
Cost of 2 stickers = $12
Cost of 1 sticker = 12 ÷ 2 = $6
(b)
Amount that he has
= Cost of 9 stickers + 8
= 9 x 6 + 8
= 54 + 8
= $62
Answer(s): (a) $6; (b) $62