Question 531430
Working separately, 5 students make 10 models in 2 days. How many models can 10 students make in 4 days?
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The rate is 10 models/(2 days * 5 students) = 1 model per student-day
Therefore, in 4 days 10 students can make
1 model/student-day * 4 days * 10 students = 40 models