At a shop, packets of coffee powder are sold only in boxes of 2. The cost of each box is $8.70. The mass of each packet of coffee powder is 1.1 kg.
- What is the total mass of 7 such packets of coffee powder?
- How much would 8 such packets of coffee powder cost?
(a)
Mass of 1 packet of coffee powder = 1.1 kg
Mass of 7 packets of coffee powder
= 7 x 1.1
= 7.7 kg
(b)
Cost of 2 packets of coffee powder = $8.70
Number of sets of 2 packets in 8 packets of coffee powder
= 8 ÷ 2
= 4
Cost of 8 packets of coffee powder
= 4 x 8.70
= $34.80
Answer(s): (a) 7.7 kg; (b) $34.80