1.

. A tank can be filled with water by two pipes A and Btogether in 36 minutes. If the pipe B was closed after 30minutes, the tank is filled in 40 minutes. The pipe B canalone fill the tank in(a) 45 mints (b) 60 mints (c) 75 mints (d) 90 mints​

Answer»

ANSWER:

90 MINTS

is the answer

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