If 8 machines make 8 items in 10 minutes, how many minutes do 100 machines need to make 100 items?
Answer and explanation
Correct answer: C.
- Step 1: Each machine makes one item in 10 minutes. Step 2. So 100 machines make 100 items in 10 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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