At a supermarket, packets of biscuits are sold only in boxes of 3. The cost of each box is $5.30. The mass of each packet of biscuits is 1.9 kg.
- What is the total mass of 4 such packets of biscuits?
- How much would 6 such packets of biscuits cost?
(a)
Mass of 1 packet of biscuits = 1.9 kg
Mass of 4 packets of biscuits
= 4 x 1.9
= 7.6 kg
(b)
Cost of 3 packets of biscuits = $5.30
Number of sets of 3 packets in 6 packets of biscuits
= 6 ÷ 3
= 2
Cost of 6 packets of biscuits
= 2 x 5.30
= $10.60
Answer(s): (a) 7.6 kg; (b) $10.60