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hard · GMAT Quantitative Reasoning

A plant of 70 workers assigns every worker to at least one of three crews of sizes 50, 50, and 50. Exactly-two memberships are 3 times the triple memberships.

How many workers sit on exactly one crew?

  1. 6
  2. 48
  3. 54
  4. 22
  5. 16

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