Adam has some money to buy some stickers.
If he buys 3 stickers, he will have $6 left.
If he buys 10 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
= 10 - 3
= 7
To buy 7 stickers, he needs to use $6 that is left and get an extra of $8.
Difference in the amount to pay in both scenarios
= 6 + 8
= $14
Adam needs $14 to buy 7 extra stickers .
Cost of 7 stickers = $14
Cost of 1 sticker = 14 ÷ 7 = $2
(b)
Amount that he has
= Cost of 3 stickers + 6
= 3 x 2 + 6
= 6 + 6
= $12
Answer(s): (a) $2; (b) $12