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17 July, 20:00

Two neon lights are turned on at the same time one blinks every 5 seconds and the other blinks every 8 seconds when will both blink at the same time

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Answers (2)
  1. 17 July, 20:17
    0
    Answer: 40 seconds

    Step-by-step explanation:

    They have that multiple in common
  2. 17 July, 21:42
    0
    Just find the lowest common multiple of 5 and 8.

    So:

    LCM [5, 8] = 40

    At 40 seconds, both lights will blink at the same time.
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