12 men complete a work in 9 days. After they have worked for 6 days, 6 more
men joined them. How many days will they take to complete the remaining work? Choose the correct choice from the following:
A) 3days	B) 4days	C) 2days	D) 8days	E) 5days
1 man's 1 day work = 1/108   12 men's 6 days work = 6/9 = 2/3   remaining work = 1 – 2/3 = 1/3   18 men's 1 days work = 18/108 = 1/6   1/6 work is done by them in 1 day   therefore, 1/3 work is done by them in  6/3= 
<gadget id="calculator"> 6/3</gadget>
<output>2</output>
2 days.   ANSWER 2days 2days
<result>C</result>
12 men complete a work in 9 days. After they have worked for 6 days, 6 more
men joined them. How many days will they take to complete the remaining work?