Answers

2014-11-02T01:00:32+08:00
10750p invested @ 7%simple interest per year
so
 interest earned per year =  10750*0.07      /  7% = 0.07
# of years to double itself =  10750/10750* 0.07 = 1/0.07
                                   ~ 14.28years
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2014-11-04T14:42:45+08:00
742.50 in the simple interest
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