three light signals turn green after every 24 secs,30secs,42secs respectively if all three singnals turns green at the same time,thogether - Maths - Whole Numbers

Question

three light signals turn green after every 24 secs,30secs,42secs
respectively if all three singnals turns green at the same
time,thogether then they will turn green together (please ans fast)

Shruti Tyagi · Accepted Answer

Dear student,

Three lights are turning green at an interval of every 24, 30, and 42 seconds
Together they will turn green at the same time will be the LCM of 24, 30, 42
i e,
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"https://s3mn%20mnimgs%20com/img/shared/ck-files/ck_59254412f0061%20png"
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L C
M of 24,30,42=2×2×2×3×5×7=840 sec or 14 min
Thus, the time after they will turn together is 14 min

Regards

three light signals turn green after every 24 secs,30secs,42secs respectively.if all three singnals turns green at the same time,thogether then they will turn green together (please ans fast)