hari

• Jun 4th, 2006

 

when both taps are in open,after 2 hours the tank have 1/3 water.after 4 hours it have 2/3 and 6 hours it have 3/3(that's it filled).

utkarsh

• Jul 29th, 2006

 

A pipe fills tank in 2hrs,so

IN 1 hr tank will we 1/2 filled.

similarly another pipe empties tank in 3hrs,o

In 1 hr tank will we 1/3 emptied.  

so in 1hr tank will we 1/2-1/3=1/6 filled

so,tand would fill in 6 hrs.