In a multiplex cinema. The duration of film in one hall is 90 min and that of another film is 120 min. If both the film starts 10 am when will the 2 halls start theiir films together again
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This. is the problem based on least common multiple
LCM of 90 and 120 is 360
It means when first hall completes 4 cinemas and 2 nd hall completes 3 cineamas next movies will begin together
5th movie of 1 St hall and 4th movie of second hall begin at same time
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Bishaljyoti:
I asked which time start both hall
You didn't say at what time they begin
360 min means 6 hours
10 am + 6 hours
at 4 pm
sorry I didn't see the question properly
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