Question

Khushi can complete a work in 10 days whereas Pinky can
complete the same work in 15 days. How long will it take to
complete the same work, if they both work on it together?​

Answer 1

Answer:

Time taken by Sachin to complete a work =10 days

So, work done by Sachin in one day =101

Time taken by Rohan to complete a work =15 days

So, work done by Rohan in one day =151

Now, work done by Rohan and Sachin together in one day =101+151

=305

=61

So, 61 of the work is done by both in =1 day

Complete work is done by both in =1×16=6 days