Crate L is 4 times as heavy as Crate M. Crate N is 7.05 kg heavier than Crate M. The total mass of Crate L and Crate M is 56 kg.
- What is the mass of Crate M?
- What is the mass of Crate N?
(a)
Mass of Crate M = 1 u
Mass of Crate L
= 4 x 1 u
= 4 u
Mass of Crate N = 1 u + 7.05
Total mass of Crate L and Crate M
= 1 u + 4 u
= 5 u
5 u = 56
1 u = 56 ÷ 5 = 11.2
Mass of Crate M
= 1 u
= 11.2 kg
(b)
Mass of Crate N
= 1 u + 7.05
= 11.2 + 7.05
= 18.25 kg
Answer(s): (a) 11.2 kg; (b) 18.25 kg