Mathematics · LCM and HCF
There are three consecutive road crossings at which traffic lights change after every 35 seconds, 42 seconds, and 90 seconds, respectively. If the lights are all set on simultaneously at 8:00:00 hours, after how much time will they change again simultaneously?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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10 minutes 30 seconds
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