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Machine folds boxes at a constant rate and can fold 300 boxes in 4 hours. Machine also folds boxes at a constant rate. How much less time would it take both machines running simultaneously to fold 300 boxes?

(1) Yesterday Machine folded 400 boxes and Machine P folded 200 boxes.

(2) Machine folds boxes at a rate of 150 boxes in 4 hours.

  • AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
  • BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
  • CBOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
  • DEACH statement ALONE is sufficient.
  • EStatements (1) and (2) TOGETHER are not sufficient.
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正确答案: B

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