Adam has some money to buy some stickers.
If he buys 6 stickers, he will have $7 left.
If he buys 11 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
= 11 - 6
= 5
To buy 5 stickers, he needs to use $7 that is left and get an extra of $8.
Difference in the amount to pay in both scenarios
= 7 + 8
= $15
Adam needs $15 to buy 5 extra stickers .
Cost of 5 stickers = $15
Cost of 1 sticker = 15 ÷ 5 = $3
(b)
Amount that he has
= Cost of 6 stickers + 7
= 6 x 3 + 7
= 18 + 7
= $25
Answer(s): (a) $3; (b) $25