1 sticker costs $2.
1 box of 50 stickers costs $20.
Adam needs 81 stickers.
- What is the minimum number of boxs that Adam should buy?
- How much will Adam spend?
(a)
Sets of 50 stickers
= 81 ÷ 50
= 1 r 31
Amount that Adam has to spend to buy 31 stickers
= 31 x 2
= $62
To buy 31 stickers at $62 is more expensive than 50 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