12 men work 8 hours per day to complete the work in 10 days. To complete the same work in 8 days, working 10 hours a day, the number of men required? Choose the correct option
A) 10 days  B) 12 days  C) 13 days  D) 11 days  E) 9 days

Rationale: "that is , 1 work done = 12 × 8 × 10 then , 12 8 × 10 = ? × 10 × 8 ? ( i . e . no . of men required ) = 12 × 8 × 10 / 10 × 8 = 12 days b )"
Answer: B