Calculate the breadth of the rapid sand filter for the following details. Flow:

Question - Calculate the breadth of the rapid sand filter for the following details.
Flow: 500 m³/h.
Velocity: 5 m/h
Backwash time: 20 mins

Options:

A . 4.5 m

B . 5.7 m

C . 3.7 m

D . 7.5 m

Answer: Option C
Answer: (c).3.7 m

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