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Social Studies, 21.01.2021 02:30 heyheyhola

25. One caution sign flashes every 4 seconds, and another caution sign flashes every 10 seconds. At a certain
instant, the 2 signs flash at the same time. How many
seconds elapse until the 2 signs next flash at the same
time?
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25. One caution sign flashes every 4 seconds, and another caution sign flashes every 10 seconds. At...
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