The traffic lights at three different road crossings change after ever

1.	The traffic lights at three different road crossings change after every 48 seconds, 72 seconds and108 seconds respectively. If they change simultaneously at 7 a.m., at what time will they change simultaneously again?
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The traffic lights at three different road crossings change after every 48 seconds, 72 seconds and108 seconds respectively. If they change simultaneously at 7 a.m., at what time will they change simultaneously again?

Answer»

ANSWER:

FIND LCM

You will GET the answer.

Step-by-step EXPLANATION:

You can do it yourself.

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The traffic lights at three different road crossings change after every 48 seconds, 72 seconds and108 seconds respectively. If they change simultaneously at 7 a.m., at what time will they change simultaneously again?​

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The traffic lights at three different road crossings change after every 48 seconds, 72 seconds and108 seconds respectively. If they change simultaneously at 7 a.m., at what time will they change simultaneously again?