Adam has some money to buy some stickers.
If he buys 10 stickers, he will have $11 left.
If he buys 16 stickers, he will need $7 more.
- How much does each sticker cost?
- How much money does he have?
(a)
Difference in the number of stickers in both scenarios
= 16 - 10
= 6
To buy 6 stickers, he needs to use $11 that is left and get an extra of $7.
Difference in the amount to pay in both scenarios
= 11 + 7
= $18
Adam needs $18 to buy 6 extra stickers .
Cost of 6 stickers = $18
Cost of 1 sticker = 18 ÷ 6 = $3
(b)
Amount that he has
= Cost of 10 stickers + 11
= 10 x 3 + 11
= 30 + 11
= $41
Answer(s): (a) $3; (b) $41