Question

In a certain bank, a man deposits a certain amount. According to the bank policies, the amount will get doubled up in a year but as the service charge, they will also deduct Rs. 65 by the end of every year.

If after the 6th year, the amount becomes 0, what do you think is the original amount he deposited in the bank?

Answer 1

This is totally impossible in real as one doesn't pay in bank in fractions. The possible answer is as follows:

Year     Amount     Interest and Deduction

Start   63.984375   
Y1 End  62.968750   63.984375 * 2 - 65
Y2 End  60.937500   62.96875* 2 - 65
Y3 End  56.875000   60.9375 * 2 - 65
Y4 End  48.750000   56.875 * 2 - 65
Y5 End  32.500000   48.75 * 2 - 65
Y6 End   0.000000   32.5 * 2 - 65 = 0

Answer 2

ans may be half of 65 ie rs 32.5