3. There are two water tanks A and B. A is much smaller than B. While water fills at the rate of 1 liter every hour in A. It gets filled up like, 10, 20, 40, 80, 160 …. In tank B. 1/8 th of the tank B is filled in 22 hours. What is the time to fill the tank fully? a) 26 b) 25 c) 5 d) 27

• b)25 hours
  Each hour, tank B has filled up like double as 10,20,40......so on
  So, by reducing the filled rate of the tank B by half for every hour, we solved it.
  So, if Tank B filled 1/8th of tank in 22 hours means,
  
  1/4 of tank B filled in 23 hours
  1/2 of tank B filled in 24 hours
  And finally,
  tank B filled totally in 25 hours.
• 13 years agoHelpfull: Yes(5) No(0)
• ANS B
  
  1/8 is filled in 22 hours
  2/18 (i.e. 1/4) is going to be filled in 23 hours.
  1/2 is going to filled in 24 hours
  To fill the tank it is going to take 25 hours.
• 13 years agoHelpfull: Yes(2) No(1)
• 25 hrs
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• 7 years agoHelpfull: Yes(0) No(0)