At a shop, packets of coffee powder are sold only in boxes of 4. The cost of each box is $12.20. The mass of each packet of coffee powder is 2.1 kg.
- What is the total mass of 3 such packets of coffee powder?
- How much would 8 such packets of coffee powder cost?
(a)
Mass of 1 packet of coffee powder = 2.1 kg
Mass of 3 packets of coffee powder
= 3 x 2.1
= 6.3 kg
(b)
Cost of 4 packets of coffee powder = $12.20
Number of sets of 4 packets in 8 packets of coffee powder
= 8 ÷ 4
= 2
Cost of 8 packets of coffee powder
= 2 x 12.20
= $24.40
Answer(s): (a) 6.3 kg; (b) $24.40