M and N working separately can complete a job in 6 and 12 hours respectively. If they work for an hour alternately M starting at 10:00 AM when will the job be done?

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Question:
M and N working separately can complete a job in 6 and 12 hours respectively. If they work for an hour alternately M starting at 10:00 AM when will the job be done?

1.2:00 PM

2.8:00 PM

3.7:00 PM

4.6:00 PM

Posted Date:-2021-09-20 02:50:13

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