solution x is 30 % chemical a and 70 % chemical b by volume. solution y is 40 % chemical a and 60 % chemical b by volume. if a mixture of x and y is 36 % chemical a, what percent of the mixture is solution x?	Choose the correct choice from the following options:
A) 30 %	B) 35 %	C) 40 %	D) 45 %	E) 50 %
<gadget id="calculator">40 - 36</gadget>
<output>4</output>

<gadget id="calculator">36 - 30</gadget>
<output>6</output>

<gadget id="calculator">4 / 6</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(2/3) + 1</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">(2/3) / (5/3)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/5) * 100</gadget>
<output>40</output>

<result>C</result>
solution x is 30 % chemical a and 70 % chemical b by volume. solution y is 40 % chemical a and 60 % chemical b by volume. if a mixture of x and y is 36 % chemical a, what percent of the mixture is solution x?
multiply(divide(divide(subtract(40, 36), subtract(36, 30)), add(divide(subtract(40, 36), subtract(36, 30)), const_1)), const_100)
"the volume of the mixture be x + y . 0.3 x + 0.4 y = 0.36 ( x + y ) x = 2 y / 3 x / ( x + y ) = ( 2 y / 3 ) / ( 5 y / 3 ) = 2 / 5 = 40 % . the answer is c ."