10 men working 6 hours a day can complete a work in 18 days. How many hours a day must 15 men work to complete the same work in 12 days?
(a) 6 hrs/days
(b) 10 hrs/days
(c) 12 hrs/days
(d) 15 hrs/days
Correct option (a) 6 hrs/days
Explanation:
