1 sticker costs $4.
1 box of 45 stickers costs $20.
Adam needs 55 stickers.
- What is the minimum number of boxs that Adam should buy?
- How much will Adam spend?
(a)
Sets of 45 stickers
= 55 ÷ 45
= 1 r 10
Amount that Adam has to spend to buy 10 stickers
= 10 x 4
= $40
To buy 10 stickers at $40 is more expensive than 45 stickers at $20.
Minimum number of boxs that Adam has to buy
= 1 + 1
= 2
(b)
Amount that Adam has to spend on 2 boxs
= 2 x 20
= $40
Answer(s): (a) 2; (b) $40