Three clocks ring once at the same time. After that the first clocks ring after every 90minute second after 30minutes & the third after 60minutes. After how many minutes will they ring all together?
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Take the LCM(90,30,60) = 180
All three will ring after 180 mins or 3 hrs
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Answer:
Take the LCM(90,30,60) = 180
All three will ring after 180 mins or 3 hrs
Step-by-step explanation:
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