A shopkeeper keeps his stock of flour in 40-kg bags. He has 4 such bags to be packed into smaller packets weighing 7 kg and 2 kg. He wants to have the same number of 7-kg packets and 2-kg packets.
- How many packets of flour does he pack altogether?
- How much flour is left over?
(a)
Total mass of flour
= 4 x 40
= 160 kg
Mass of one set of 1 2-kg packet and 1 7-kg packet
= 2 + 7
= 9 kg
Number of sets
= 160 ÷ 9
= 17 r 7
Number of packets of flour
= 2 x 17
= 34
(b)
Mass of flour left over = 7 kg
Answer(s): (a) 34; (b) 7 kg