medium · GMAT Quant
An optical bench holds two laser emitters placed at position x = -10 and position x = 30. A detector at integer position x is calibrated so that the sum of its distances to the two emitters, |x + 10| + |x - 30|, is less than or equal to 60 units.
How many integer values of x satisfy this requirement?
- 61
- 41
- 60
- 51
- 62
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