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March 30, 2017

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A choir is singing at a festival. On the first night 12 choir members were absent,so the choir stood in 5 equal rows. On the second night only one member was absent, so they stood in 6 equal rows. the same number of people stood in each row each night. How many members are in the choir?

  • math - ,

    I hope this helps!

    37-12=25 5 rows of 5
    37-1=36 6 rows of 6

  • math - ,

    from the first data:
    it has to be a multiple of 5 + 12, could be
    17 22 27 32 37 42 47 ...

    from the 2nd data:
    it has to be a multiple of 6 + 1 , could be
    7 13 19 25 31 37 43 ..

    ahhh, 37 is found in both , which is also Lila's answer.

    There were 37 choir members

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