Crate K is 3 times as heavy as Crate L. Crate M is 7.77 kg heavier than Crate L. The total mass of Crate K and Crate L is 54 kg.
- What is the mass of Crate L?
- What is the mass of Crate M?
(a)
Mass of Crate L = 1 u
Mass of Crate K
= 3 x 1 u
= 3 u
Mass of Crate M = 1 u + 7.77
Total mass of Crate K and Crate L
= 1 u + 3 u
= 4 u
4 u = 54
1 u = 54 ÷ 4 = 13.5
Mass of Crate L
= 1 u
= 13.5 kg
(b)
Mass of Crate M
= 1 u + 7.77
= 13.5 + 7.77
= 21.27 kg
Answer(s): (a) 13.5 kg; (b) 21.27 kg