Adam has some money to buy some stickers.
If he buys 10 stickers, he will have $6 left.
If he buys 13 stickers, he will need $12 more.
- How much does each sticker cost?
- How much money does he have?
(a)
Difference in the number of stickers in both scenarios
= 13 - 10
= 3
To buy 3 stickers, he needs to use $6 that is left and get an extra of $12.
Difference in the amount to pay in both scenarios
= 6 + 12
= $18
Adam needs $18 to buy 3 extra stickers .
Cost of 3 stickers = $18
Cost of 1 sticker = 18 ÷ 3 = $6
(b)
Amount that he has
= Cost of 10 stickers + 6
= 10 x 6 + 6
= 60 + 6
= $66
Answer(s): (a) $6; (b) $66