There is a tank which gets continuous supply from a large tank.There are 10 outlets to the tanks which can empty the tank
in 2.5 hours after the tank is full.Provided that the supply to the tank is open during this period.Again if 6 outlet pipes are open it will take 5.5 hours to empty.How many time it will take to empty the tank if 3 pipes are open?
options:a)13 b)11 c)8.5 d)dont remember.

• since 10 pipes can fill in 2.5 hrs,hence 5 pipes will fill in 5 hours or more time hence 2.5or 3 pipes will fill in 10 hours or more hence answer can be 11 or 13 hrs,but as 6 pipes fill in 5.5 hours hence half of that that is 3 pipes will fill in 5.5*2=11 hours
• 10 years agoHelpfull: Yes(15) No(7)
• ----10/6=2.5/5.5
  ----5/3=5/11
  
  so 3 pipes take 11 hrs
• 10 years agoHelpfull: Yes(3) No(6)
• asked on 9th July 2014.
• 10 years agoHelpfull: Yes(0) No(0)