If both the pipes are opened, how many hours will be taken to fill the tank? I. The capacity of the tank is 400 litres. II. The pipe A fills the tank in 4 hours.  III. The pipe B fills the tank in 6 hours.

A.Only I and II

B.Only II and III

C.All I, II and III

D.Any two of the three

E.Even with all the three statements, answer cannot be given.

Show Answer

Answer=Option B

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