1 sticker costs $3.
1 box of 35 stickers costs $15.
Adam needs 40 stickers.
- What is the minimum number of boxs that Adam should buy?
- How much will Adam spend?
(a)
Sets of 35 stickers
= 40 ÷ 35
= 1 r 5
Amount that Adam has to spend to buy 5 stickers
= 5 x 3
= $15
To buy 5 stickers at $15 is more expensive than 35 stickers at $15.
Minimum number of boxs that Adam has to buy
= 1 + 1
= 2
(b)
Amount that Adam has to spend on 2 boxs
= 2 x 15
= $30
Answer(s): (a) 2; (b) $30