The total mass of 4 packets of pepper and 6 packets of rice flour is 216 kg. Each packet of pepper has a mass of 12 kg.
- What is the total mass of 4 packets of pepper?
- What is the total mass of 6 packets of rice flour?
- If each bag of rice flour has the same mass, what is the mass of 1 packet of rice flour?
(a)
Let the mass of 1 packet of pepper and rice flour be P and R respectively.
Let 1 packet of pepper be 1 P.
Let 1 packet of rice flour be 1 R.
4 P + 6 R = 216
1 P = 12
Mass of 4 packets of pepper
= 4 x 12
= 48 kg
(b)
Mass of 6 packets of rice flour
= 216 - 48
= 168 kg
(c)
Mass of 1 packet of rice flour
= 168 ÷ 6
= 28 kg
Answer(s): (a) 48 kg; (b) 168 kg; (c) 28 kg