Math

The ratio of boys to girls at a day care center is 5 to 4. Which of following cannot be the total number of children at the center?

A. 27
B. 54
C. 60
D. 72

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asked by Mike
  1. 5x + 4x = 27, 54, 60, 72

    Solve for x for each number. Which every does not solve as a whole number is the answer.

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    posted by PsyDAG
  2. I'm not understanding. Please show me how to solve.

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    posted by Mike
  3. With a ratio of 5:4, the total needs to be some multiple of 9. Which is not a multiple of 9?

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    posted by PsyDAG
  4. 72

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  5. But how should it be 72 if 72 is a multiple of 9. 9 x 8 =72

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    posted by No name

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