A

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Q. On a road three consecutive traffic lights change after 36, 42 and 72 seconds respectively. If the lights are first switched on at 9:00 AM sharp, at what time will they change simultaneously?

  • (A) 9:08:04
  • (B) 9:08:24
  • (C) 9:08:44
  • (D) None of these
  • Correct Answer - Option(B)
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