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. (At the end of first hour, B has 10 liters, second hour it has 20 liters and so on). If tank B is 1/32 filled of the 21 hours, what is total duration of hours required to fill it completely?
a) 26 B) 25 c) 5 d) 27

• 1/32 in 21 hour
  1/16 in 22 hour becoz rate is getting doubled
  1/8 in 23 hour
  1/4 in 24 hour
  1/2 in 25 hour
  tank is fill in 26 hour
• 10 years agoHelpfull: Yes(7) No(0)
• 2^5=32
  take power add to the hour =5+21
  =26
  ans a)26
  
  
• 10 years agoHelpfull: Yes(2) No(2)
• Clearly according to question, water in tank B gets double every 1 hour.
  hence:
  1/32 in 21 hour
  1/16 in 22 hour
  1/8 in 23 hour
  1/4 in 24 hour
  1/2 in 25 hour
  1 in 26 hour
  
• 9 years agoHelpfull: Yes(1) No(0)