Question

pipe A can fill a cristern in 5 hours and B can fill it in 6 hours both the pipe are opened and after two hours pipe A is closed . how much time will B take to fill the remaining part of tank
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Answer 1

Answer:

to get a job in the world of work to get the best way of life and

Answer 2

Answer:

15/24 hours

Step-by-step explanation:

pipe -a= 5hrs =1/5 part

pipe-b= 6hrs =1/6 part

1hr= 1/5+1/6=6+5/30=11/30

2hr=11/30 * 2=11/15

remaining=1-11/15 = 4/15

work took for pipe-b for filling= 4/15*6=24/15

work=24/15

time=15/24hours