The following table shows different plans offered by a lender, type of interest and rates of interest applicable during first, second and third year.

The lender decides to offer a fixed rate of interest at `6 2/3%` per year under Plan C. By how much per cent the interest payable will increase from the interest payable previously under the old plan for the period of three years if rate of interest for the third year under old Plan C and Plan D is same?

Options

A. 108
B. 20/3
C. 28
D. 136

Answer

C