20 men do a work in 20 days. how many men are needed to finish the work in 10 days?  Options.
A) 50  B) 20  C) 30  D) 10  E) 40
<gadget id="calculator">20 * 20</gadget>
<output>400</output>

<gadget id="calculator">400 / 10</gadget>
<output>40</output>

<result>E</result>
20 men do a work in 20 days. how many men are needed to finish the work in 10 days?
divide(multiply(20, 20), 10)
"men required to finish the work in 10 days = 20 * 20 / 10 = 40 answer is e"