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16) There are two water tanks A and B, A is much smaller
than B. While water fills at the rate of one litre 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 litres , second
hour it has 20, and so on). If tank B is 1/32 filled after
21 hours, what is the total duration required to fill it
completely?
a) 26 hrs b) 25 hrs c) 5 hrs d) 27 hrs
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Answer Posted / saurabh singh
Solution: for every hour water in tank in B is doubled,
Let the duration to fill the tank B is x hours.
x/32 part of water in tank of B is filled in 21 hours,
Next hour it is doubled so,
2*(x/32) part i.e (x/16) part is filled in 22 hours,
Similarly (x/8)th part in 23 hours,(x/4)th part is filled in
24 hours,
(x/2)th part is filled in 25 hours, (x)th part is filled in
26 hours
So answer is 26 hours.
| Is This Answer Correct ? | 22 Yes | 1 No |
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