GRE Problem Solving Question 110
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Source: OG2
If s is a speed, in miles per hour, at which the energy used per meter during running is twice the energy used per meter during walking, then, according to the graph above, s is between
- A 2.5 and 3.0
- B 3.0 and 3.5
- C 3.5 and 4.0
- D 4.0 and 4.5
- E 4.5 and 5.0