A container packed with 4 bags of bread flour weighs 6.27 kg. The same container when packed with 15 such bags of bread flour weighs 22.55 kg.
- Find the mass of 4 bags of bread 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 packet of bread flour be 1 P.
1 C + 4 P = 6.27 --- (1)
1 C + 15 P = 22.55 --- (2)
(2) - (1)
11 P = 22.55 - 6.27
11 P = 16.28
1 P = 16.28 ÷ 11 = 1.48
Mass of 4 bags of bread flour
= 4 x 1.48
= 5.92 kg
(b)
Mass of the empty container
= 6.27 - 5.92
= 0.35 kg
Answer(s): (a) 5.92 kg; (b) 0.35 kg