3 men or 6 women can do a piece of work in 20 days. In how many days will 12 men and 8 women do the same work?
Pick:
A) 11/4 days	B) 16/4 days	C) 18/4 days	D) 15/4 days	E) 13/4 days
15/4 days   15/4 days   3M = 6W ---- 20 days   12M + 8W -----?   24W + 8 W = 32W ---?   6W ---- 20 32 -----?   6 * 20  24  + 8= 
<gadget id="calculator"> 24  + 8</gadget>
<output>32</output>
32W ---?   6W ---- 20 32 -----?   6 * 20= 32 * x =&gt; x = 15/4 days
<result>D</result>
3 men or 6 women can do a piece of work in 20 days. In how many days will 12 men and 8 women do the same work?