medium · GMAT Quant
A building manager determines that the monthly maintenance cost M for a complex with n units is M = n^2 - 60n + 1000.
If the manager requires the cost to be no more than $400 and the number of units n must be at least 25, how many possible integer values of n satisfy these conditions?
- 12
- 60
- 23
- 35
- 22
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