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The traffic lights at three different …

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The traffic lights at three different road crossing change after every 48 seconds 72 seconds and 108seconds respectively lf they change simultaneously at 7am at what time will they change simultaneously again

    • Posted by Snigdha Shooburt 6 years, 4 months ago

    CBSE > Class 06 > Maths (OLD)
    • 3 answers

    Snigdha Shooburt 6 years, 3 months ago

    Yes Ananth Dev I am also in byjus

    0Thank You

    Papa'S Angel 6 years, 4 months ago

    We have to find out the LCM of 48,72 &108 LCM-2×2×3×2×3×2×1×3 - 438seconds 438÷60(an hour) The traffic lights will again coincide after 7 minutes and 12 seconds 7:00 a.m. + 7 minutes 12 seconds --7:12 minutes

    2Thank You

    Ananth Dev 6 years, 4 months ago

    7am+7 minutes=7:07:12 You saw in byjus

    4Thank You

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