Time And Work

Vedic Maths trick to Find Time And Work Problems.

Ramesh takes 4hrs to do a job, Suresh takes 5hrs to do the same job. How log does it take if both are working together but indipendently to do the same job.

If Ramesh takes 4hrs to do a job in 1hr.
Then, 1hr = 1/4 job.

If Suresh takes 5hrs to do a job in 1hr.
Then, 1hr = 1/5 job.

Now add both the values and inverse them and then we will get_browser

5 + 4/20

So, the result will be

9/20hr