in what time will a sum of money at 12.5 simple interest double itself
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Time = 12.5 year
Let principle is x and amount is 2x
Then according to formula
Amount = principle *rate*time/100 + principle
Amount = x*r*12.5/100 +x
2x = x(r*12.5/100+1)
2 = r* 12.5/100 +1
2-1 = r *12.5/100
100=12.5*r
100/12.5 =r
R= 8 %
Rate of interest = 8%
Let principle is x and amount is 2x
Then according to formula
Amount = principle *rate*time/100 + principle
Amount = x*r*12.5/100 +x
2x = x(r*12.5/100+1)
2 = r* 12.5/100 +1
2-1 = r *12.5/100
100=12.5*r
100/12.5 =r
R= 8 %
Rate of interest = 8%
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