Dr. Johnson needs to paint his clinic.
He knows that the painting job can be completed by 5 painters in 26 days.
If 15 more painters join the team 6 days after starting work on the job, then how many more days are required to complete the job?
Dr. Johnson needs to paint his clinic.
He knows that the painting job can be completed by 5 painters in 26 days.
If 15 more painters join the team 6 days after starting work on the job, then how many more days are required to complete the job?
Answer:
5 more days. If 5 painters can do the job in 26 days, then 5 × 26 = 130 man-days are required.
When 5 painters work for 6 days, it makes 5 × 6 = 30 man-days.
The job still requires 130 − 30 = 100 man-days, and there are 20 painters available to do it.
20 painters for 100 man-days = 100 / 20 = 5 days.
Therefore, 5 more days are required to complete the painting job.
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