A shopkeeper keeps his stock of bread flour in 40-kg bags. He has 2 such bags to be packed into smaller packets weighing 5 kg and 4 kg. He wants to have the same number of 5-kg packets and 4-kg packets.
- How many packets of bread flour does he pack altogether?
- How much bread flour is left over?
(a)
Total mass of bread flour
= 2 x 40
= 80 kg
Mass of one set of 1 4-kg packet and 1 5-kg packet
= 4 + 5
= 9 kg
Number of sets
= 80 ÷ 9
= 8 r 8
Number of packets of bread flour
= 2 x 8
= 16
(b)
Mass of bread flour left over = 8 kg
Answer(s): (a) 16; (b) 8 kg