The total mass of 6 packets of pepper and 3 packets of flour is 195 kg. Each packet of pepper has a mass of 18 kg.
- What is the total mass of 6 packets of pepper?
- What is the total mass of 3 packets of flour?
- If each bag of flour has the same mass, what is the mass of 1 packet of flour?
(a)
Let the mass of 1 packet of pepper and flour be P and F respectively.
Let 1 packet of pepper be 1 P.
Let 1 packet of flour be 1 F.
6 P + 3 F = 195
1 P = 18
Mass of 6 packets of pepper
= 6 x 18
= 108 kg
(b)
Mass of 3 packets of flour
= 195 - 108
= 87 kg
(c)
Mass of 1 packet of flour
= 87 ÷ 3
= 29 kg
Answer(s): (a) 108 kg; (b) 87 kg; (c) 29 kg