question_answer

The inner length and breadth of rectangular sump are 27 m and 22 m respectively. Water flows through an inlet pipe at 90 m per minute. The cross-sectional area of the pipe is 1\[{{\mathbf{m}}^{\mathbf{2}}}\]. The tank takes only 30 minutes to get filled. Find the depth of the sump (in m).

A) 3.74                 

B) 4.54    

C) 2.84         

D) 3.24

E) None of these