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easy · GMAT Quantitative Reasoning

A real estate developer is calculating the number of units n in a new complex. The value of n is a root of the equation n^2 - 50n + 600 = 0.

If the developer requires that n be a multiple of 15, what is the value of n + 10?

  1. 60
  2. 50
  3. 30
  4. 40
  5. 20

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