Praxis 5511 Practice Test Practice Question
A truck driver drove 225 miles at an average speed of 50 miles per hour and another 210 miles at an average speed of 60 miles per hour. What was the total driving time?
Correct Answer: D
Rationale: To find the total driving time, calculate the time for each segment of the trip. For the first segment, driving 225 miles at 50 miles per hour takes 4.5 hours (225 ÷ 50 = 4.5). For the second segment, driving 210 miles at 60 miles per hour takes 3.5 hours (210 ÷ 60 = 3.5). Adding these together results in a total driving time of 8 hours (4.5 + 3.5 = 8).
Option A (6 hours 30 minutes) underestimates the time, likely miscalculating one or both segments. Option B (7 hours) also falls short, missing the total by an hour. Option C (7 hours 30 minutes) is closer but still incorrect, as it does not account for the full 8 hours.
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