Post-UTME Mathematics 2017 Objective — Question 30
Question 30 of 50 from the Post-UTME Screening (Post-UTME) Mathematics 2017 Objective paper, with the correct answer and a full explanation.
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Maria left home at 9:00 A.M., ran 3 miles to the lake, ran around the lake twice, and ran home along the same route for a total distance of 10 miles. Which single piece of additional information is required to determine Maria's average jogging speed?
- A. the distance around the lake
- B. the time she returned homeCorrect
- C. the amount of time she stopped to rest
- D. the average length of her jogging stride / E. the amount of time it took her to run from the lake to her home
Explanation
Average speed = distance/time; the total distance (10 miles) is known, so the time she returned home is needed to compute total time.
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