How many times do they toll together?

Six bells commence tolling together,  afterwards they toll at intervals of 2, 4, 6, 8, 10 and 12 seconds In 30 minutes, how many times do they toll together?

  1. 4
  2. 10
  3. 15
  4. 16
Anurag Mishra Professor Asked on 26th January 2016 in Maths.
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  • 1 Answer(s)

    Answer: (4) 16 

    Anurag Mishra Professor Answered on 26th January 2016.
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