Beverage Dispenser F and Beverage Dispenser G have a total amount of 2052 mℓ of water. For Beverage Dispenser G and Beverage Dispenser H, the total amount of water is 2187 mℓ. The amount of water in Beverage Dispenser F is ⁵₈ the amount of water in Beverage Dispenser H. What is the average amount of water in the 3 beverage dispensers?
Beverage Dispenser F = 5 u
Beverage Dispenser H = 8 u 

Beverage Dispenser G + Beverage Dispenser F = 2052 --- (1)
Beverage Dispenser G + Beverage Dispenser H = 2187 --- (2)

(2) - (1)
(Beverage Dispenser G + Beverage Dispenser F) - (Beverage Dispenser G + Beverage Dispenser H) = 2187 - 2052
8 u - 5 u = 135
3 u = 135

1 u = 135 ÷ 3 = 45
Beverage Dispenser F = 5 u = 45 x 5 = 225

Beverage Dispenser F + Beverage Dispenser G + Beverage Dispenser H = 225 + 2187 = 2412 mℓ

Average amount of water in the 3 beverage dispensers
= 2412 ÷ 3 
= 804 mℓ

Answer(s): 804 mℓ