6 people can do work in 80 days how much people they required to complete the work in 16 days?  Pick one.
A) 10	B) 20	C) 30	D) 40	E) 50
<gadget id="calculator">6 * 80</gadget>
<output>480</output>

<gadget id="calculator">480 / 16</gadget>
<output>30</output>

<result>C</result>
6 people can do work in 80 days how much people they required to complete the work in 16 days?
divide(multiply(6, 80), 16)
man and days concept . . . 6 m * 80 d = m * 16 d solve it , total no of people required is 30 ; answer : c