Vaibhav can do a piece of work in 60 days. He works there for 15 days and then Sandeep alone finishes the remaining work in 30 days. In how many days will Vaibhav and Sandeep working together finish the work?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 24 days
| Application |
|
Let the efficiency of the Vaibhav is 1 unit per day then the total work is 60 unit After working 15 days Remaining work 45 unit |
|
45/30 = 1.5 So here 1.5 is the efficiency of Sandeep |
|
Now, When both work together, total efficiency = 2.5 So, Number of days to finish the work when Vaibhav and Sandeep are working together = 60/2.5 = 24 days |