In how many minimum number of complete years, the interest on 212.50 P at 3% per annum will be in exact number of rupees?  Choices:
A) 6
B) 8
C) 9
D) 7
E) None of these
Interest for one year = 212.50 × 3⁄100 × 1 = 51⁄8   Thus in 8 years, the interest is 51.   Answer 8
<result>B</result>
In how many minimum number of complete years, the interest on 212.50 P at 3% per annum will be in exact number of rupees?