Principal sum = Rs. 5000 Rate of interest = 8% and time period = $$frac{9}{12}=frac{3}{4}$$ years Compound interest when interest is compound quarterly = $$P[(1+frac{R}{400})^{4T}-1]$$ = $$5000[(1+frac{8}{400})^{frac{3}{4} imes4}-1]$$ = $$5000[(1+frac{1}{50})^3-1]$$
= $$5000[(frac{51}{50})^3-1]$$
= $$5000 imes(frac{132651-125000}{125000})$$
= $$frac{7651}{25}=Rs.$$ $$306.04$$ => Ans - (C)