Box G is 3 times as heavy as Box H. Box J is 7.23 kg heavier than Box H. The total mass of Box G and Box H is 78 kg.
- What is the mass of Box H?
- What is the mass of Box J?
(a)
Mass of Box H = 1 u
Mass of Box G
= 3 x 1 u
= 3 u
Mass of Box J = 1 u + 7.23
Total mass of Box G and Box H
= 1 u + 3 u
= 4 u
4 u = 78
1 u = 78 ÷ 4 = 19.5
Mass of Box H
= 1 u
= 19.5 kg
(b)
Mass of Box J
= 1 u + 7.23
= 19.5 + 7.23
= 26.73 kg
Answer(s): (a) 19.5 kg; (b) 26.73 kg