Question 1202792
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How long will it take a sum of money to double itself if interest 12(1/2)% per annum 
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As the problem is worded, printed, posted and presented, it is FATALLY INCOMPLETE.


To be complete, it MUST say if the account is simple interest or a compound interest.


From the distance of thousands miles, it is clearly seen that the person who created it, 
is unfamiliar with standard formulations of this type of problems.