Raju and Rajat working together take 5 days to complete a piece of work. If Raju alone can do this work in 7 days, how long would Rajat take to complete the same work?

Raju and Rajat together complete the work in 5 days.

Raju alone can complete the work in 7 days.

The total work done by Raju and Rajat together in one day is the sum of the work done by Raju and Rajat individually in one day.

The reciprocal of the number of days taken by a person to complete the work gives the person's one-day work.

Let the time taken by Rajat to complete the same work alone = $$T_{Rajat}$$​ 

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