the traffic light at four different road crossings change after every 24 seconds 48 seconds 72 seconds and 108 seconds respectively if the change simultaneously at 8 a.m. at what time will they change simultaneously again
please solve this question please
Answers
Answered by
1
Answer:
8.07.12 am
Step-by-step explanation:
LCM of 24 seconds 48 seconds 72 seconds and 108 seconds = 432 seconds = 432/60 minutes = 7 minutes 12 seconds
they change simultaneously again after = 8.00 am + 7 minutes 12 seconds = 8.07.12 am
Answered by
10
Answer:
Hi dear your answer is here.
L. C.M of 72,108,24,48 are 432.
After the 432 seconds the lights changed simultaneously.
432 seconds = 7 minutes 12 seconds.
Therefore the time = 7 a:m + 7 minutes 12 seconds
= 7:07:12 a:m
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