A container packed with 2 packets of rice flour weighs 10.31 kg. The same container when packed with 10 such packets of rice flour weighs 24.39 kg.
- Find the mass of 2 packets of rice flour in kg.
- Find the mass of the empty container in kg.
(a)
Let the mass of 1 container be 1 C.
Let the mass of 1 bag of rice flour be 1 B.
1 C + 2 B = 10.31 --- (1)
1 C + 10 B = 24.39 --- (2)
(2) - (1)
8 B = 24.39 - 10.31
8 B = 14.08
1 B = 14.08 ÷ 8 = 1.76
Mass of 2 packets of rice flour
= 2 x 1.76
= 3.52 kg
(b)
Mass of the empty container
= 10.31 - 3.52
= 6.79 kg
Answer(s): (a) 3.52 kg; (b) 6.79 kg