The time of flow in minutes for a longitudinal drain of 400 m and with a velocity of 0.8 m/sec is$

The time of flow in minutes for a longitudinal drain of 400 m and with

1.	The time of flow in minutes for a longitudinal drain of 400 m and with a velocity of 0.8 m/sec is$
A.	6.33
B.	7.33
C.	8.33
D.	9.33
Answer» D. 9.33