math

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in a class there are 4 boys for every 6 girls. there are 54 pupils. how many boys are there?

  • math -

    if there are 4x boys, there are 6x girls.

    4x+6x=54
    10x=54
    x=5.4
    so, there are 21.6 boys and 32.4 girls.

    a strange solution. Are you sure there was no mistake in the question as written?

    Unless, of course, not all the boys and girls are pupils.

  • math -

    that is the do or die question in the math challenge... their answer was 24... and i can't really figure it out how they get the 24....

  • math -

    but steve thanks anyway....

  • math -

    If the answer is 24, then there must have been 60 pupils in the class. 24 boys, 36 girls.

  • math -

    that's right....

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