Box Z is 4 times as heavy as Box A. Box B is 6.78 kg heavier than Box A. The total mass of Box Z and Box A is 52 kg.
- What is the mass of Box A?
- What is the mass of Box B?
(a)
Mass of Box A = 1 u
Mass of Box Z
= 4 x 1 u
= 4 u
Mass of Box B = 1 u + 6.78
Total mass of Box Z and Box A
= 1 u + 4 u
= 5 u
5 u = 52
1 u = 52 ÷ 5 = 10.4
Mass of Box A
= 1 u
= 10.4 kg
(b)
Mass of Box B
= 1 u + 6.78
= 10.4 + 6.78
= 17.18 kg
Answer(s): (a) 10.4 kg; (b) 17.18 kg