1 sticker costs $2.
1 bag of 40 stickers costs $10.
Adam needs 89 stickers.
- What is the minimum number of bags that Adam should buy?
- How much will Adam spend?
(a)
Sets of 40 stickers
= 89 ÷ 40
= 2 r 9
Amount that Adam has to spend to buy 9 stickers
= 9 x 2
= $18
To buy 9 stickers at $18 is more expensive than 40 stickers at $10.
Minimum number of bags that Adam has to buy
= 2 + 1
= 3
(b)
Amount that Adam has to spend on 3 bags
= 3 x 10
= $30
Answer(s): (a) 3; (b) $30