Question

the neon signs are turned on at the same time on blinks every 9seconds the other sign blinked on every 15 seconds will they blink together again ? Want both numbers L.C.M together ​

Answer 1

Answer:

Think about mulitples of the two numbers 9 and 15. And we will have to assume that they both started blinking at the same time (at time zero)

For 9 the lights will blink at seconds: 0, 9, 18, 27, 36, 45, 54, 63,

For 15 the ligts will blink at seconds: 0, 15, 30, 45, 60, 75

They will blink together at 45 seconds

Answer 2

Answer:

If the green sign blinks every 9 seconds and the pink sign blinks every 15 seconds how many seconds will they blink together im really having a hard time

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