There are 4 traffic lights in a busy road. The traffic lights are such that, they change at equal intervals simultaneously, at **128 seconds, 40 seconds, 100 seconds, 50 seconds**. All the three lights change simultaneously at *6:30 AM*.

**Then find the next time in which they will change lights simultaneously. Give your answer in decimal form, ignoring the seconds**

For example, if your answer is

You have got that the light glow after 4 hour 3 minutes 4 seconds. Then your answer will be 10.3

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