Question

in how many years rs.6750 amount to rs.8192 at 20/3p.a compounded annually

Answer 1

8192=6750(1+20/300)2
$\frac{8192}{6750} = {(1 + 20 \div 300)}^{n}$
$\frac{4096}{3375 } = ( {15 \div 16})^{n}$
$\frac{1 {5 }^{3} }{16 } = \frac{15} {16}$