Question 529408
When painting the walls of an art museum, the painters found that it took 5 men to paint 4 walls in 6 hours. Then, 9 more men were added to the job. How many hours would it take them to do 28 rooms?
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It took 5*6=30 man-hours to complete painting 4 walls or one room
28 rooms will require 30*28=840 man hours
men on job=5+9=13
Hours to paint 28 rooms=840/13≈64.62 hrs