Adam has some money to buy some stickers.
If he buys 5 stickers, he will have $6 left.
If he buys 8 stickers, he will need $3 more.
- How much does each sticker cost?
- How much money does he have?
(a)
Difference in the number of stickers in both scenarios
= 8 - 5
= 3
To buy 3 stickers, he needs to use $6 that is left and get an extra of $3.
Difference in the amount to pay in both scenarios
= 6 + 3
= $9
Adam needs $9 to buy 3 extra stickers .
Cost of 3 stickers = $9
Cost of 1 sticker = 9 ÷ 3 = $3
(b)
Amount that he has
= Cost of 5 stickers + 6
= 5 x 3 + 6
= 15 + 6
= $21
Answer(s): (a) $3; (b) $21