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The traffic lights at three different road crossing change after every 48 seconds, 72 seconds, 108 seconds respectively. If they all change simultaneously at 8:20:00 hours , then at what time will they again change simultaneously

Posted by Mausam Chahal 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Geetanand Yadav 6 years, 10 months ago

Their LCM=432 Change into minutes=432/60=7minutes and 12 second Then add them you will get the answer

2Thank You

Mausam Chahal 6 years, 10 months ago

Please complete solve this ques

1Thank You

Geetanand Yadav 6 years, 10 months ago

At 8:27:12

1Thank You

ANSWER

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CBSE > Class 10 > Mathematics