Crate X is 4 times as heavy as Crate Y. Crate Z is 6.02 kg heavier than Crate Y. The total mass of Crate X and Crate Y is 42 kg.
- What is the mass of Crate Y?
- What is the mass of Crate Z?
(a)
Mass of Crate Y = 1 u
Mass of Crate X
= 4 x 1 u
= 4 u
Mass of Crate Z = 1 u + 6.02
Total mass of Crate X and Crate Y
= 1 u + 4 u
= 5 u
5 u = 42
1 u = 42 ÷ 5 = 8.4
Mass of Crate Y
= 1 u
= 8.4 kg
(b)
Mass of Crate Z
= 1 u + 6.02
= 8.4 + 6.02
= 14.42 kg
Answer(s): (a) 8.4 kg; (b) 14.42 kg