Asked by Deepamar

In an industrial area three factories give out sirens at an interval of 40 min, 1 hour anf 1 and a half hour. respectively. Find the time between the two simultaneously sounds of three sirens.
Answered by Mohan
6 hrs
Answered by Rajesh
Very good
Answered by Bilal
Plzz tell the method solved
Answered by Rohan
In an industrial area ,three factories give out sirens at an interval of 40 minutes , 1 hour and one and a half hour, respectively. Find the time between two simultaneous sounda of three sirens.
Answered by 222
Find the LCM of 40 , 60 and 90 then divide the answer by 60


Ans: 6
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