Question

Ranjit purchased one six years National Saving
Certificate for * 10000. After six years he got
20150. Find the rate of interest, if the interest
is compounded half yearly​

Answer 1

P = 10,000

R = m

T = 6 year

$a = p(1 + \frac{r}{n} )nt$

[ 20150 = 1000$(1 + \frac{2}{6} {}^{6 \times 6} )$

N=11•791%

Hope it help you.