At a shop, packets of biscuits are sold only in boxes of 3. The cost of each box is $12.40. The mass of each packet of biscuits is 1.7 kg.
- What is the total mass of 3 such packets of biscuits?
- How much would 6 such packets of biscuits cost?
(a)
Mass of 1 packet of biscuits = 1.7 kg
Mass of 3 packets of biscuits
= 3 x 1.7
= 5.1 kg
(b)
Cost of 3 packets of biscuits = $12.40
Number of sets of 3 packets in 6 packets of biscuits
= 6 ÷ 3
= 2
Cost of 6 packets of biscuits
= 2 x 12.40
= $24.80
Answer(s): (a) 5.1 kg; (b) $24.80