A pipe can fill a lank in 12 hours and another
can empty it in 24 hours. If both the pipes are
used, with the first pipe running for 2 hours
and second pipe running for 1 hour
alternatively, how long will it take to fill the
tank? (consider starting with the first pipe)
Options..
22 h 30 minutes
23
23
21 hours 30 minutes
Answers
Answered by
0
Answer:
21 hours 30 minutes............
Answered by
0
Answer:
Answer is 21 hr 30 min....
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