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5 cats catch 5 rats in 5 minutes. How many cats are needed to catch 100 rats in 100 minutes?

Competition practiceTime & Work / Pipes
  • A100 cats
  • B20 cats
  • C25 cats
  • D5 cats

Step-by-Step Solution

Each cat catches 1 rat per 5 minutes, so 20 rats in 100 minutes. 5 cats catch 100.
Answer: D) 5 cats

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