Adam has some money to buy some stickers.
If he buys 7 stickers, he will have $14 left.
If he buys 13 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
= 13 - 7
= 6
To buy 6 stickers, he needs to use $14 that is left and get an extra of $10.
Difference in the amount to pay in both scenarios
= 14 + 10
= $24
Adam needs $24 to buy 6 extra stickers .
Cost of 6 stickers = $24
Cost of 1 sticker = 24 ÷ 6 = $4
(b)
Amount that he has
= Cost of 7 stickers + 14
= 7 x 4 + 14
= 28 + 14
= $42
Answer(s): (a) $4; (b) $42