Find the required time — task. Maths CBSE Live product, Class 10 (2026-27).

The traffic lights at three different road crossings change after every 48 seconds, 72 seconds and 108 seconds respectively. If they change simultaneously at 7 a.m., when will they all be green again simultaneously?

Ans:

They will change simultaneously again at

\(8:07:14\) \(a.m\)
\(7:07:12\) \(a.m\)
\(8:15:14\) \(a.m\)
\(7:15:12\) \(a.m\)

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8. Find the required time

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