At a shop, packets of biscuits are sold only in boxes of 4. The cost of each box is $8.40. The mass of each packet of biscuits is 2.3 kg.
- What is the total mass of 3 such packets of biscuits?
- How much would 8 such packets of biscuits cost?
(a)
Mass of 1 packet of biscuits = 2.3 kg
Mass of 3 packets of biscuits
= 3 x 2.3
= 6.9 kg
(b)
Cost of 4 packets of biscuits = $8.40
Number of sets of 4 packets in 8 packets of biscuits
= 8 ÷ 4
= 2
Cost of 8 packets of biscuits
= 2 x 8.40
= $16.80
Answer(s): (a) 6.9 kg; (b) $16.80