Cylinder U and Cylinder V have a total amount of 2952 mℓ of water. For Cylinder V and Cylinder W, the total amount of water is 4032 mℓ. The amount of water in Cylinder U is ³₅ the amount of water in Cylinder W. What is the average amount of water in the 3 cylinders?
Cylinder U = 3 u
Cylinder W = 5 u 

Cylinder V + Cylinder U = 2952 --- (1)
Cylinder V + Cylinder W = 4032 --- (2)

(2) - (1)
(Cylinder V + Cylinder U) - (Cylinder V + Cylinder W) = 4032 - 2952
5 u - 3 u = 1080
2 u = 1080

1 u = 1080 ÷ 2 = 540
Cylinder U = 3 u = 540 x 3 = 1620

Cylinder U + Cylinder V + Cylinder W = 1620 + 4032 = 5652 mℓ

Average amount of water in the 3 cylinders
= 5652 ÷ 3 
= 1884 mℓ

Answer(s): 1884 mℓ