• # question_answer 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.               B) 10 hrs.C) 12 hrs.              D) 15 hrs.

Required hours $=\frac{10\times 6\times 18}{15\times 12}$ $=6\,\,hours$