find compound interest on rs. 7500 at 4 % per year for 2 years, compounded annually.	Choose the correct choice from the following answers.
A) 812
B) 712
C) 412
D) 512
E) 612
<gadget id="calculator">7_500 * 4</gadget>
<output>30_000</output>

<gadget id="calculator">30_000 / 100</gadget>
<output>300</output>

<gadget id="calculator">7_500 + 300</gadget>
<output>7_800</output>

<gadget id="calculator">7_800 * 4</gadget>
<output>31_200</output>

<gadget id="calculator">31_200 / 100</gadget>
<output>312</output>

<gadget id="calculator">7_800 + 312</gadget>
<output>8_112</output>

<gadget id="calculator">8_112 - 7_500</gadget>
<output>612</output>

<result>E</result>
find compound interest on rs. 7500 at 4 % per year for 2 years, compounded annually.
subtract(add(add(7500, divide(multiply(7500, 4), const_100)), divide(multiply(add(7500, divide(multiply(7500, 4), const_100)), 4), const_100)), 7500)
"amount = rs [ 7500 * ( 1 + ( 4 / 100 ) 2 ] = rs ( 7500 * ( 26 / 25 ) * ( 26 / 25 ) ) = rs . 8112 . therefore , compound interest = rs . ( 8112 - 7500 ) = rs . 612 . answer is e ."