39 persons can repair a road in 12 days, working 5 hours a day. In how many days will 30 persons, working 6 hours a day, complete the work?
Select the correct option:	A) 11	B) 12	C) 13	D) 15	E) 14
First codition=total hours to complete the work=39 persons * 12 days * 5 hr   Second codition=total hours to complete the work=30 persons * x days * 6 hr   since the work is still the same so   39*12*5=30*x*6   x=13   answer :13
<result>C</result>
39 persons can repair a road in 12 days, working 5 hours a day. In how many days will 30 persons, working 6 hours a day, complete the work?