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Two street lights change every 30 seconds and 50 seconds respectively. They last change together at 10:40 am. When will they change together again? so umm I need help on this question haha ​
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Two street lights change every 30 seconds and 50 seconds respectively. They last change together at 10:40 am. When will they change together again?

so umm I need help on this question haha ​

User Kunal Tanwar
by
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1 Answer

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The time when they change again = 432seconds

User Joren Van Severen
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