[PP Sub Inspector 17 Aug 2021] 

4. If Rakhi and Raji can together do a job in 8 hours and Rakhi can do the job alone in 10 hours, then in how many hours can Raji do the job alone?

1. 38 hours

2. 30 hours

3. 34 hours

4. 40 hours

Correct Answer :

40 hours