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CAT 2024 Set-3 | Quantitative Aptitude | Question: 9

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A train travelled a certain distance at a uniform speed. Had the speed been $6$ km per hour more, it would have needed $4$ hours less. Had the speed been $6$ km per hour less, it would have needed $6$ hours more. The distance, in km, travelled by the train is

  1. $800$
  2. $720$
  3. $780$
  4. $640$

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