If 6 machines make 6 items in 4 minutes, how many minutes do 200 machines need to make 200 items?

Answer and explanation

Correct answer: A.

  1. Step 1: Each machine makes one item in 4 minutes. Step 2. So 200 machines make 200 items in 4 minutes. **Answer: . Why not the others:** is what you get if you assume more machines make it slower. is what you get if you scale the time by the number of items. is what you get if you double the time.

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