Two neon lights are turned one at the same time. One blinks every 4 seconds and the other blinks every 6 seconds. In 60 seconds,
how many times will they blink together?
2 answers:
Two neon lights turned on at same time.
one blinks other blinks
every 4 seconds every 6 seconds.
ob ob
4 : 6
60.
60 / 4 = 15
60 / 6 = 10.
15+ 10 = 25 times.
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