If Rs.1000 be invested at interest rate of 5% & the interest be added to the principal every 10 yrs, then the no. of yrs in which it will amount to Rs.2000 is:	Choose the correct choice from the following options.
A) 15
B) 17 1/3
C) 16 2/3
D) 19 2/5
E) 21 1/5
Total time= (10+6 2/3) = 16 2/3 years   16 2/3
<result>C</result>
If Rs.1000 be invested at interest rate of 5% & the interest be added to the principal every 10 yrs, then the no. of yrs in which it will amount to Rs.2000 is: