A container packed with 2 packets of flour weighs 8.47 kg. The same container when packed with 8 such packets of flour weighs 28.45 kg.
- Find the mass of 2 packets of 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 box of flour be 1 B.
1 C + 2 B = 8.47 --- (1)
1 C + 8 B = 28.45 --- (2)
(2) - (1)
6 B = 28.45 - 8.47
6 B = 19.98
1 B = 19.98 ÷ 6 = 3.33
Mass of 2 packets of flour
= 2 x 3.33
= 6.66 kg
(b)
Mass of the empty container
= 8.47 - 6.66
= 1.81 kg
Answer(s): (a) 6.66 kg; (b) 1.81 kg