8 men, working 8 hours a day can complete a work in 24 days. How many hours a day must 12 men work to complete the same work in 16 days? Choose the correct choice
A) 6	B) 7	C) 8	D) 9	E) 10
The number of hours required to complete the work is 8*8*24= 
<gadget id="calculator">8*8*24</gadget>
<output>1_536</output>
1536   12 × 16 × (x)= 1536   x = 8   The answer is 8.
<result>C</result>
8 men, working 8 hours a day can complete a work in 24 days. How many hours a day must 12 men work to complete the same work in 16 days?