Stoplight A changes color every 42 seconds and Stoplight B changes color every 30 seconds. Both stoplights changed color 10 seconds ago. After how many seconds will the stoplights change color at the same

Jacob Kranz asked Mar 23, 2022

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Jacob Kranz asked Mar 23, 2022

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10 votes

Answer:

210

Explanation:

LCM of 42sec and 30 sec=210 sec

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