SOLUTION: 15 scientists working 6 hrs. a day can make a big machinery in 20 days. In how many days 5 scientists make that machinery working 12 hrs. a day?
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Question 118234: 15 scientists working 6 hrs. a day can make a big machinery in 20 days. In how many days 5 scientists make that machinery working 12 hrs. a day? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! (Number of scientists)(hours worked per scientist) = Total hours
(rate1) = (rate2)
rate1 = rate2 = (1 big machine / total hours) days answer