Adam has some money to buy some stickers.
If he buys 2 stickers, he will have $7 left.
If he buys 5 stickers, he will need $11 more.
- How much does each sticker cost?
- How much money does he have?
(a)
Difference in the number of stickers in both scenarios
= 5 - 2
= 3
To buy 3 stickers, he needs to use $7 that is left and get an extra of $11.
Difference in the amount to pay in both scenarios
= 7 + 11
= $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 2 stickers + 7
= 2 x 6 + 7
= 12 + 7
= $19
Answer(s): (a) $6; (b) $19