Two pipes A and B fill at a certain rate.B is filled at 10,20,40,80(10 in 1 hour,20 in 2 hours,40 in 3 hrs and so on). if 1/16 of B is filled in 17 hrs,what time it will take to get completely filled?

• 1/16 in 17 hrs
  so 1/8 in 18 hrs
  1/4 in 19 hrs
  1/2 in 20 hrs
  and complete tank in 21 hrs
  (BCOZ every hra quantity becomes double)
• 14 years agoHelpfull: Yes(40) No(2)
• 1/16 is filled in 17h
  for completing 1/8,1/4,1/2,1 we have required the 4 hours so ans is 21hours
• 14 years agoHelpfull: Yes(8) No(0)
• for these question (1/2)^n=x ,total=x+n
  (1/2)^4=17
  17+4=21
• 14 years agoHelpfull: Yes(7) No(1)
• let x be time. and condition is given A is filled into B in this way 10,20,40,80... now x*1/16 is 17hrs..next x*1/8 is 18hrs...next x*1/4 is 19hrs...next x*1/2 is 20hrs... next x*1/1 is 21hrs.......... ans will be 21hrs
• 14 years agoHelpfull: Yes(6) No(2)