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Six Bells Start Ringing Together And Ring At Intervals Of 4, 8, 10, 12, 15 And 20 Seconds Respectively. How Many Times Will They Ring Together In 60 Minutes ? |
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Answer» LCM of 4, 8, 10, 12, 15 and 20 = 120 120 seconds = 2 minutes Hence all the SIX bells will ring together in every 2 minutes Hence, number of times they will ring together in 60 minutes =1+60/2=31. LCM of 4, 8, 10, 12, 15 and 20 = 120 120 seconds = 2 minutes Hence all the six bells will ring together in every 2 minutes Hence, number of times they will ring together in 60 minutes =1+60/2=31. |
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