Box Z is 3 times as heavy as Box A. Box B is 6.25 kg heavier than Box A. The total mass of Box Z and Box A is 50 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
= 3 x 1 u
= 3 u
Mass of Box B = 1 u + 6.25
Total mass of Box Z and Box A
= 1 u + 3 u
= 4 u
4 u = 50
1 u = 50 ÷ 4 = 12.5
Mass of Box A
= 1 u
= 12.5 kg
(b)
Mass of Box B
= 1 u + 6.25
= 12.5 + 6.25
= 18.75 kg
Answer(s): (a) 12.5 kg; (b) 18.75 kg