1 sticker costs $3.
1 bag of 30 stickers costs $20.
Adam needs 61 stickers.
- What is the minimum number of bags that Adam should buy?
- How much will Adam spend?
(a)
Sets of 30 stickers
= 61 ÷ 30
= 2 r 1
Amount that Adam has to spend to buy 1 stickers
= 1 x 3
= $3
To buy 1 stickers at $3 is more expensive than 30 stickers at $20.
Minimum number of bags that Adam has to buy
= 2 + 1
= 3
(b)
Amount that Adam has to spend on 3 bags
= 3 x 20
= $60
Answer(s): (a) 3; (b) $60