Simple interest on a sum at 4% per annum for 2 years is Rs.80. The C.I. on the same sum for the same period is?
Pick
A) 81.6 B) 81.9 C) 81.2 D) 81.3 E) 81.1
SI = 40 + 40   CI = 40 + 40 + 1.6= 
<gadget id="calculator">40 + 40 + 1.6</gadget>
<output>81.6</output>
81.6   81.6nswer: 81.6
<result>A</result>
Simple interest on a sum at 4% per annum for 2 years is Rs.80. The C.I. on the same sum for the same period is?