Crate J is 4 times as heavy as Crate K. Crate L is 5.54 kg heavier than Crate K. The total mass of Crate J and Crate K is 78 kg.
- What is the mass of Crate K?
- What is the mass of Crate L?
(a)
Mass of Crate K = 1 u
Mass of Crate J
= 4 x 1 u
= 4 u
Mass of Crate L = 1 u + 5.54
Total mass of Crate J and Crate K
= 1 u + 4 u
= 5 u
5 u = 78
1 u = 78 ÷ 5 = 15.6
Mass of Crate K
= 1 u
= 15.6 kg
(b)
Mass of Crate L
= 1 u + 5.54
= 15.6 + 5.54
= 21.14 kg
Answer(s): (a) 15.6 kg; (b) 21.14 kg