mary ' s income is 60 percent more than tim ' s income, and tim ' s income is 50 percent less than juan ' s income. what percent of juan ' s income is mary ' s income?
Select the correct option.
A) 124 %
B) 120 %
C) 96 %
D) 80 %
E) 64 %
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 - (1/2)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 + (3/5)</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">(1/2) * (8/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(4/5) * 100</gadget>
<output>80</output>

<result>D</result>
mary ' s income is 60 percent more than tim ' s income, and tim ' s income is 50 percent less than juan ' s income. what percent of juan ' s income is mary ' s income?
multiply(multiply(subtract(const_1, divide(50, const_100)), add(const_1, divide(60, const_100))), const_100)
"juan ' s income = 100 ( assume ) ; tim ' s income = 50 ( 50 percent less than juan ' s income ) ; mary ' s income = 80 ( 60 percent more than tim ' s income ) . thus , mary ' s income ( 80 ) is 80 % of juan ' s income ( 100 ) . answer : d ."