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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?

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TCS Other Question

The citizens of planet nigiet are 5 fingered and have thus developed their decimal system in base 8. A certain street in nigiet contains 1000 (in base 5) buildings numbered 1 to 1000. How many 3s are used in numbering these buildings? Express result in terms of base 10.
a) 54 b) 64 c) 75 d) 100
6 persons standing in queue with different age group, after two years
their average age will be 43 and seventh person joined with them. Hence
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