28 Men and 52 women working together completes a work in 22.5 days. 35 men and 65 women working together on same work will complete it in how many days?
Correct Answer: 18
Explanation:
Clearly total persons are increased in 28/35 :: 52/65 = 4:5.
As time is inversely proportional to men, so total time will decrease in the ratio 5:4.