1 sticker costs $4.
1 packet of 50 stickers costs $30.
Adam needs 71 stickers.
- What is the minimum number of packets that Adam should buy?
- How much will Adam spend?
(a)
Sets of 50 stickers
= 71 ÷ 50
= 1 r 21
Amount that Adam has to spend to buy 21 stickers
= 21 x 4
= $84
To buy 21 stickers at $84 is more expensive than 50 stickers at $30.
Minimum number of packets that Adam has to buy
= 1 + 1
= 2
(b)
Amount that Adam has to spend on 2 packets
= 2 x 30
= $60
Answer(s): (a) 2; (b) $60