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 answer:
A) 16 years
B) 16 1/3 years
C) 16 2/3 years
D) 17 years
E) 17 2/3 years
Total time= (10+6 2/3) = 16 2/3 years   16 2/3 years
<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: