Vipin can do a piece of work in 2 days; Vaibhav can do the same work in 3 days and Chirag can do the same work in 6 days. If they start working together, how many days will they take to complete the work?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 1.
Given that
Vipin can do a piece of work in 2 days
Vaibhav can do the same work in 3 days
Chirag can do the same work in 6 days
Total work = LCM (2, 3, 6) = 6
The efficiency of Vipin = 6/2 = 3
The efficiency of Vaibhav = 6/3 = 2
The efficiency of Chirag = 6/6 = 1
If they start working together,
Hence, they will take time to complete the work = 6/(3 + 2 + 1) = 6/6 = 1