Question

in how many years will rs 300 double itself 2% simple interest

Answer 1

it is ur answer.......

Answer 2

CP = 300/-
SI = 2% per year
2% of 300 is
$\frac{2}{100} \times 300 \\ 6$
in 1 year intrest in amount =6/-

for intrest increased 300/-
it will take
$\frac{300}{6} = 50 \\ \\ 50 \: years$