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Two people work together on a job. Which statement is always true?

Competition practiceTime & Work / Pipes
  • ATogether they take the average of their times
  • BTogether they take the sum of their times
  • CTogether they take less time than the faster one alone
  • DTogether they take half the slower one's time

Step-by-Step Solution

Adding a second worker can only add to the rate, so the joint time is below the faster worker's own time.
Answer: C) Together they take less time than the faster one alone

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