Question

a pipe open to a tank can fill 400L in 10min and another pipe can fill 600L in 15 min.In how many minutes a tank of 8000L can be filled,if both the pipes are are opened simultaneously



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Answer 1

Answer:

100 mins

Explanation:

Pipe A Speed per minute = 400/10 = 40 L per kin

Pipe B speed per minute = 600/15 = 40 L per minute

Speed when both pipes are open simultaneously = 40 + 40 = 80 L per min

Time taken to fill the tank = Tank volume / Speed of pipes

= 8000 / 80

= 100 minutes