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Helga [31]
3 years ago
14

A red blinking light blinks every 18 seconds, while a yellow blinking light blinks every 12 seconds. If both lights start at the

same time, after how many seconds will they next blink at the same time? A) 6 B) 18 C) 36 D) 54
Mathematics
2 answers:
Nikolay [14]3 years ago
5 0
Least common multiple because that's when the numbers meet....... so the answer is C.
Mice21 [21]3 years ago
4 0
Option C, 36, because it is the LCM (Least common multiple)
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