Sunil complete a work in 4 days whereas Dinesh completes the work in 6 days. Ramesh work 1 1/ 2 times as fast as sunil. How many days it will take for the three together to complete the work?
Correct Answer: None of these
Explanation:
Time taken by Ramesh alone = (2/3) x 4 = 8/3 days
∴ Their 1 day's work = (1/4 + 1/6 + 3/8) = 19/24
So, together they can finish the work in 24 /19 days, i.e., 15/19 days.
