the wages earned by robin is 20 % 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?	Select the correct option
A) 18.75 %  B) 33 %  C) 30 %  D) 50 %  E) 100 %
<gadget id="calculator">100 + 60</gadget>
<output>160</output>

<gadget id="calculator">100 + 20</gadget>
<output>120</output>

<gadget id="calculator">160 - 120</gadget>
<output>40</output>

<gadget id="calculator">40 / 120</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 100</gadget>
<output>100/3 = around 33.333333</output>

<result>B</result>
the wages earned by robin is 20 % 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, 20)), add(const_100, 20)), const_100)
"let wage of erica = 10 wage of robin = 1.2 * 10 = 12 wage of charles = 1.6 * 10 = 16 percentage by which wage earned by charles is more than that earned by robin = ( 16 - 12 ) / 12 * 100 % = 4 / 12 * 100 % = 33 % answer b"