The total mass of 2 bags of rice flour and 9 bags of flour is 281 kg. Each bag of rice flour has a mass of 10 kg.
- What is the total mass of 2 bags of rice flour?
- What is the total mass of 9 bags of flour?
- If each bag of flour has the same mass, what is the mass of 1 bag of flour?
(a)
Let the mass of 1 bag of rice flour and flour be R and F respectively.
Let 1 bag of rice flour be 1 R.
Let 1 bag of flour be 1 F.
2 R + 9 F = 281
1 R = 10
Mass of 2 bags of rice flour
= 2 x 10
= 20 kg
(b)
Mass of 9 bags of flour
= 281 - 20
= 261 kg
(c)
Mass of 1 bag of flour
= 261 ÷ 9
= 29 kg
Answer(s): (a) 20 kg; (b) 261 kg; (c) 29 kg