1 sticker costs $5.
1 box of 55 stickers costs $10.
Adam needs 78 stickers.
- What is the minimum number of boxs that Adam should buy?
- How much will Adam spend?
(a)
Sets of 55 stickers
= 78 ÷ 55
= 1 r 23
Amount that Adam has to spend to buy 23 stickers
= 23 x 5
= $115
To buy 23 stickers at $115 is more expensive than 55 stickers at $10.
Minimum number of boxs that Adam has to buy
= 1 + 1
= 2
(b)
Amount that Adam has to spend on 2 boxs
= 2 x 10
= $20
Answer(s): (a) 2; (b) $20