the wages earned by robin is 40 % more than that earned by erica. the wages earned by charles is 60 % more than that earned by erica. how much percent is the wages earned by charles more than that earned by robin?	Options:  A) 14 %  B) 23 %  C) 30 %  D) 50 %  E) 100 %
<gadget id="calculator">100 + 60</gadget>
<output>160</output>

<gadget id="calculator">100 + 40</gadget>
<output>140</output>

<gadget id="calculator">160 - 140</gadget>
<output>20</output>

<gadget id="calculator">20 / 140</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">(1/7) * 100</gadget>
<output>100/7 = around 14.285714</output>

<result>A</result>
the wages earned by robin is 40 % more than that earned by erica. the wages earned by charles is 60 % more than that earned by erica. how much percent is the wages earned by charles more than that earned by robin?
multiply(divide(subtract(add(const_100, 60), add(const_100, 40)), add(const_100, 40)), const_100)
"let wage of erica = 10 wage of robin = 1.4 * 10 = 14 wage of charles = 1.6 * 10 = 16 percentage by which wage earned by charles is more than that earned by robin = ( 16 - 14 ) / 14 * 100 % = 2 / 14 * 100 % = 14 % answer a"