8 men can complete a work in 45 days. 8 women can complete the same work in 18 days. In how many days will 5 men and 8 women, together, complete the same work?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e 14(2/5)
8 men × 45 = 8 women × 18
Efficiency of men = 2
Efficiency of women = 5
Total work = (8 × 2 × 45) = 720
5 men and 8 women = (5 × 2 + 8 × 5) = 10 + 40 = 50
Time = 720/50 = 14(2/5)