Crate C is 4 times as heavy as Crate D. Crate E is 5.73 kg heavier than Crate D. The total mass of Crate C and Crate D is 49 kg.
- What is the mass of Crate D?
- What is the mass of Crate E?
(a)
Mass of Crate D = 1 u
Mass of Crate C
= 4 x 1 u
= 4 u
Mass of Crate E = 1 u + 5.73
Total mass of Crate C and Crate D
= 1 u + 4 u
= 5 u
5 u = 49
1 u = 49 ÷ 5 = 9.8
Mass of Crate D
= 1 u
= 9.8 kg
(b)
Mass of Crate E
= 1 u + 5.73
= 9.8 + 5.73
= 15.53 kg
Answer(s): (a) 9.8 kg; (b) 15.53 kg