If 12 men or 20 women can do a piece of work in 54 days, then in how many days can 9 men and 12 women together do the work?	Options.
A) 10 days B) 30 days C) 20 days D) 80 days E) 40 days
E   40 days   Given that 12m = 20w =&gt; 3m = 5w   9 men + 12 women = 15 women + 12 women = 27 women   20 women can do the work in 54 days. So, 27 women can do it in   (20 * 54) /27= 
<gadget id="calculator">  (20 * 54) /27</gadget>
<output>40</output>
40 days.
<result>E</result>
If 12 men or 20 women can do a piece of work in 54 days, then in how many days can 9 men and 12 women together do the work?