How long will take a leak at the bottom of a tank to empty it if it will take 3 hours to fill it without the leak, but due to the leak it will take one additional hour to be filled? Answers
A) 12 hours  B) 111 hours  C) 15 hours  D) 14 hours  E) 11 hours
Part filled without leak in 1 hour = 1/3   Part filled with leak in 1 hour = 1/4   Work done by leak in 1 hour   =1/3âˆ’1/4=12 hours   12 hoursnswer:12 hours
<result>A</result>
How long will take a leak at the bottom of a tank to empty it if it will take 3 hours to fill it without the leak, but due to the leak it will take one additional hour to be filled?