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Re: Walking a constant pace on flat ground, a hiker can cover M [#permalink]
2
Hiker can cover M miles in 5 hours so the speed is M/5 mi per hour.
Speed = M/5
Distance = Speed * Time
Distance (in 1+ M hours) = M/5 * (1 +M) = (M^2 + M) / 5

Answer is option E
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Re: Walking a constant pace on flat ground, a hiker can cover M [#permalink]
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