Solve the following problems.
We observed the traffic lights at three different squares on the same big road. They turn green every 60 seconds, 120 seconds and 24 seconds. When the signals are switched on at 8 o’clock in the morning, all lights were green. How long after that will all three signals turn green simultaneously again?

Explanation

All three signals will turn simultaneously green again at 2 minutes past 8 o’clock.