Adam has some money to buy some stickers.
If he buys 4 stickers, he will have $10 left.
If he buys 7 stickers, he will need $2 more.
- How much does each sticker cost?
- How much money does he have?
(a)
Difference in the number of stickers in both scenarios
= 7 - 4
= 3
To buy 3 stickers, he needs to use $10 that is left and get an extra of $2.
Difference in the amount to pay in both scenarios
= 10 + 2
= $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 4 stickers + 10
= 4 x 4 + 10
= 16 + 10
= $26
Answer(s): (a) $4; (b) $26