the compound interest earned on a sum for the second and the third years are $ 1400 and $ 1498 respectively. what is the rate of interest?  Pick:
A) 3 % B) 5 % C) 7 % D) 9 % E) 11 %
<gadget id="calculator">1_498 - 1_400</gadget>
<output>98</output>

<gadget id="calculator">98 * 100</gadget>
<output>9_800</output>

<gadget id="calculator">9_800 / 1_400</gadget>
<output>7</output>

<result>C</result>
the compound interest earned on a sum for the second and the third years are $ 1400 and $ 1498 respectively. what is the rate of interest?
divide(multiply(subtract(1498, 1400), const_100), 1400)
"1498 - 1400 = 98 is the rate of interest on $ 1400 for one year . the rate of interest = ( 100 * 98 ) / ( 1400 ) = 7 % the answer is c ."