Numerical Ability

Question.112
  The compound intrest accrued on a sum of Rs.7500 in two years is Rs.927.
what would be the rate of intrest p.c.p.a.?
1)5.4%
2)8%
3)6%
4)8.4%
5)5%

Answer..

7500/100=75
927/2=463.5.
if 462.5/75=6.18
So the answer..
3) 6%