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A manager turns on neon light signs.When they are turned on at the same time and they blinkat the same time.One sign blinks every 9 seconds and the other blinks every 15 seconds.In how many seconds will
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A manager turns on neon light signs.When they are turned on at the same time and they blinkat the same time.One sign blinks every 9 seconds and the other blinks every 15 seconds.In how many seconds will they blink together again?

User Serban Razvan
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1 Answer

4 votes
45 seconds because the LCM is 45 for 9 and 15.
User GorkemHalulu
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