Question

Q3)The traffic signals showed green at 6am.
Signal colour ch












Q3)The traffic signals showed green at 6am.
Signal colour changes for every 48sec,72sec,108seconds respectively.At what time they show green
at a time.



anges for every 48sec,72sec,108seconds respectively.At what time they show 'green'
at a time?
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Answer 1

Answer:

red colour in changed at 72 second and yellow colour in 108 second

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