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23 September, 21:43

One student can paint a wall in 12 minutes. Another student can paint the same wall in 24 minutes. Working together, how long will it take for them to paint the wall?

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  1. 23 September, 22:03
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    Student 1 can paint 1/12 of the wall per minute.

    Student 2 can paint 1/24 of the wall per minute.

    1/12t + 1/24t = 1 where t represents time in minutes.

    3/24t=1

    Divide both sides by 3/24

    t=24/3

    t=8

    Final answer: 8 minutes
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