A single discount equivalent to the discount series of 20%, 10% and 5% is?	Select the correct option:  A) 31.6  B) 31.9  C) 31.6  D) 31.4  E) 31.1
100*(80/100)*(90/100)*(95/100)= 
<gadget id="calculator">100*(80/100)*(90/100)*(95/100)</gadget>
<output>342/5 = around 68.4</output>
68.4   100 - 68.4= 
<gadget id="calculator">100 - 68.4</gadget>
<output>31.6</output>
31.6   31.6nswer: 31.6
<result>A</result>
A single discount equivalent to the discount series of 20%, 10% and 5% is?