a is twice as good a workman as b and they took 9 days together to do the work b alone can do it in.	Choose the correct choice from the following answers:  A) 17 days  B) 12 days  C) 29 days  D) 25 days  E) 27 days
<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">9 * 3</gadget>
<output>27</output>

<gadget id="calculator">27 / 2</gadget>
<output>27/2 = around 13.5</output>

<gadget id="calculator">(27/2) * 2</gadget>
<output>27</output>

<result>E</result>
a is twice as good a workman as b and they took 9 days together to do the work b alone can do it in.
multiply(divide(multiply(9, add(const_2, const_1)), const_2), const_2)
"wc = 2 : 1 2 x + x = 1 / 9 x = 1 / 27 = > 27 days answer : e"