If the simple interest is 12 ½% per annum

If the simple interest is 12 ½% per annum, then the number of years in which a certain amount of money is doubled is ……..
(a) 8
(b) 7 ½
(c) 9
(d) 8 ½

Anurag Mishra Professor Asked on 23rd May 2016 in Maths.
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    Answer; (a) 8 

    Anurag Mishra Professor Answered on 24th May 2016.
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