Question

two man can do a piece of work in 6 hours and 4 hours respectively. After the first has worked for 2 hours he is joined by the other. By when should the work be completed? ​

Answer 1

Answer:

more 2 hours he should complete the peice of work

Answer 2

Answer:

The first worker completes 1/6 of the job per hour. After 2 hours, 1/3 is done and 2/3 of the job remains.

The second worker completes 1/4 of the job per hour.

Working together, they complete

16+14=512 of the job per hour.

23 job ×1 hour512job=85 hours= 1 hour and 36 minutes

The job takes a total of 3 hours and 36 minutes.

Step-by-step explanation:

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