Mathematics Mcqs
Q The wheels revolve round a common horizontal axis. They make 15, 20 and 48 revolutions in a minute respectively. Starting with a certain point on the circumference down wards. After what interval of time will they come together in the same position?
  • A A. 1 min
  • B B. 2 min
  • C C. 3 min
  • D D. None
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