the c. p of 20 books is equal to the s. p of 30 books. find his gain % or loss %? Choose the correct choice from the following.
A) 63.33 %  B) 34.33 %  C) 33.33 %  D) 31.33 %  E) 36.33 %
<gadget id="calculator">20 / 30</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 - (2/3)</gadget>
<output>1/3 = around 0.333333</output>

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

<result>C</result>
the c. p of 20 books is equal to the s. p of 30 books. find his gain % or loss %?
multiply(subtract(const_1, divide(20, 30)), const_100)
explanation : 20 cp = 30 sp 30 - - - 10 cp loss 100 - - - ? = > 33.33 % loss answer : c