A container packed with 4 packets of bread flour weighs 8.34 kg. The same container when packed with 14 such packets of bread flour weighs 23.14 kg.
- Find the mass of 4 packets 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 bag of bread flour be 1 B.
1 C + 4 B = 8.34 --- (1)
1 C + 14 B = 23.14 --- (2)
(2) - (1)
10 B = 23.14 - 8.34
10 B = 14.8
1 B = 14.8 ÷ 10 = 1.48
Mass of 4 packets of bread flour
= 4 x 1.48
= 5.92 kg
(b)
Mass of the empty container
= 8.34 - 5.92
= 2.42 kg
Answer(s): (a) 5.92 kg; (b) 2.42 kg