1 sticker costs $2.
1 bag of 30 stickers costs $25.
Adam needs 40 stickers.
- What is the minimum number of bags that Adam should buy?
- How much will Adam spend?
(a)
Sets of 30 stickers
= 40 ÷ 30
= 1 r 10
Amount that Adam has to spend to buy 10 stickers
= 10 x 2
= $20
To buy 10 stickers at $20 is more expensive than 30 stickers at $25.
Minimum number of bags that Adam has to buy
= 1 + 1
= 2
(b)
Amount that Adam has to spend on 2 bags
= 2 x 25
= $50
Answer(s): (a) 2; (b) $50