# You have one ₹ 1 coin in your piggy bank. Your father decides to give you daily as many ₹1 coins as you have in the piggy bank. That is, on day one he gives you one ₹1 coin, on day two he gives you two ₹1 coins,on day three he gives you four ₹1 coin, and so on. If your piggy bank becomes full in sixteen days, in how many days would it be 1/8th full..?

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by rb7

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