Adam has some money to buy some stickers.
If he buys 5 stickers, he will have $7 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 - 5
= 2
To buy 2 stickers, he needs to use $7 that is left and get an extra of $5.
Difference in the amount to pay in both scenarios
= 7 + 5
= $12
Adam needs $12 to buy 2 extra stickers .
Cost of 2 stickers = $12
Cost of 1 sticker = 12 ÷ 2 = $6
(b)
Amount that he has
= Cost of 5 stickers + 7
= 5 x 6 + 7
= 30 + 7
= $37
Answer(s): (a) $6; (b) $37