39 persons can repair a road in 12 days, working 5 hours a day. In how many days will 30 persons, working 3 hours a day, complete the work?	Choose the correct choice from the following options: A) 10 B) 26 C) 14 D) 15 E) 16
Let the required number of days be x.   Less persons, More days (Indirect Proportion)   More working hours per day, Less days (Indirect Proportion)   Persons	30	:	39	:: 12 : x   Working hours/day	3	:	5   30 x 3 x x = 39 x 5 x 12   x =	(39 x 5 x 12)/(30 x 3)   x = 26.   ANSWER:26
<result>B</result>
39 persons can repair a road in 12 days, working 5 hours a day. In how many days will 30 persons, working 3 hours a day, complete the work?