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13 November, 19:23

there are 4 planets. the first planet has an orbit of 3 years. The second planet has an orbit of 5 years. The third planet has an orbit of 8 years. The fourth planet has an orbit of 12 years. if there in conjunction how long till they're in conjunction again? math problem answer

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  1. 13 November, 20:27
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    Find the LCM of the four numbers (3, 5, 8, 12)

    3: 3

    5: 5

    8: 2 * 2 * 2

    12: 2 * 2 * 3

    LCM = 2 * 2 * 2 * 3 * 5

    = 120

    Answer: 120 years
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