Question

A man lends Rupees 12500 at 12% for the first year at 15% for the second year and at 18% for the third years. If the rate of interest compounded yearly; find the difference between the compound interest of the first year and the compound interest of the third year

Answer 1

first year=12%
2nd year=15%
the interest of the third year=18%
difference between the ist year and third year=6%