Adam has some money to buy some stickers.
If he buys 2 stickers, he will have $5 left.
If he buys 7 stickers, he will need $5 more.
- How much does each sticker cost?
- How much money does he have?
(a)
Difference in the number of stickers in both scenarios
= 7 - 2
= 5
To buy 5 stickers, he needs to use $5 that is left and get an extra of $5.
Difference in the amount to pay in both scenarios
= 5 + 5
= $10
Adam needs $10 to buy 5 extra stickers .
Cost of 5 stickers = $10
Cost of 1 sticker = 10 ÷ 5 = $2
(b)
Amount that he has
= Cost of 2 stickers + 5
= 2 x 2 + 5
= 4 + 5
= $9
Answer(s): (a) $2; (b) $9