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BTGmoderatorLU
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Source: Manhattan Prep
Carlos runs a lap around the track in x seconds. His second lap is five seconds slower than the first lap, but the third lap is two seconds faster than the first lap. What is Carlos's average (arithmetic mean) number of minutes per lap, in terms of x?
A. \(x-1\)
B. \(x+1\)
C. \(\frac{x-1}{60}\)
D. \(\frac{x+1}{60}\)
E. \(\frac{x+3}{60}\)
The OA is D
Carlos runs a lap around the track in x seconds. His second lap is five seconds slower than the first lap, but the third lap is two seconds faster than the first lap. What is Carlos's average (arithmetic mean) number of minutes per lap, in terms of x?
A. \(x-1\)
B. \(x+1\)
C. \(\frac{x-1}{60}\)
D. \(\frac{x+1}{60}\)
E. \(\frac{x+3}{60}\)
The OA is D
