a factory gives out sirens to announce the changes in shift for workers at an interval of 1.5 hours,2 hours and 2.5 hours. find the time between two simultaneous sounds of three sirens. if the sirens are given out together at 9 o clock in the morning together when will they be heard together again for the first time second time
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3
Answer:
1.5+2+2.5=6hrs
9+6=15
=3pm
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Answer:
from where do you get this question?
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