1 sticker costs $3.
1 bag of 30 stickers costs $15.
Adam needs 42 stickers.
- What is the minimum number of bags that Adam should buy?
- How much will Adam spend?
(a)
Sets of 30 stickers
= 42 ÷ 30
= 1 r 12
Amount that Adam has to spend to buy 12 stickers
= 12 x 3
= $36
To buy 12 stickers at $36 is more expensive than 30 stickers at $15.
Minimum number of bags that Adam has to buy
= 1 + 1
= 2
(b)
Amount that Adam has to spend on 2 bags
= 2 x 15
= $30
Answer(s): (a) 2; (b) $30