3 men and 8 women complete a task in same time as 6 men and 2 women do. How much fraction of work will be finished in same time if 4 men and 2 women will do that task.  Choose one
A) 5 / 7  B) 3 / 10  C) 5 / 18  D) 5 / 16  E) 5 / 11

Rationale: "3 m + 8 w = 6 m + 2 w 3 m = 6 w 1 m = 2 w therefore 3 m + 8 w = 14 w 4 m + 2 w = 10 w answer is 10 / 14 = 5 / 7 answer : a"
Answer: A