A rectangular water tank is 80 m x 40 m. Water flows into it through a – McqOptions

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1.	A rectangular water tank is 80 m x 40 m. Water flows into it through a pipe of 40 sq.cm at the opening at a speed of 10 km/hr. The water level will rise in the tank in half an hour is
A.	(3/2) cm
B.	(4/9) cm
C.	(5/9) cm
D.	(5/8) cm
Answer» E.

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