Adam has some money to buy some stickers.
If he buys 7 stickers, he will have $6 left.
If he buys 10 stickers, he will need $6 more.
- How much does each sticker cost?
- How much money does he have?
(a)
Difference in the number of stickers in both scenarios
= 10 - 7
= 3
To buy 3 stickers, he needs to use $6 that is left and get an extra of $6.
Difference in the amount to pay in both scenarios
= 6 + 6
= $12
Adam needs $12 to buy 3 extra stickers .
Cost of 3 stickers = $12
Cost of 1 sticker = 12 ÷ 3 = $4
(b)
Amount that he has
= Cost of 7 stickers + 6
= 7 x 4 + 6
= 28 + 6
= $34
Answer(s): (a) $4; (b) $34