At a shop, packets of coffee powder are sold only in boxes of 4. The cost of each box is $8.50. The mass of each packet of coffee powder is 1.4 kg.
- What is the total mass of 7 such packets of coffee powder?
- How much would 12 such packets of coffee powder cost?
(a)
Mass of 1 packet of coffee powder = 1.4 kg
Mass of 7 packets of coffee powder
= 7 x 1.4
= 9.8 kg
(b)
Cost of 4 packets of coffee powder = $8.50
Number of sets of 4 packets in 12 packets of coffee powder
= 12 ÷ 4
= 3
Cost of 12 packets of coffee powder
= 3 x 8.50
= $25.50
Answer(s): (a) 9.8 kg; (b) $25.50