JAMB Mathematics 2018 Paper

Concept:The distance covered in one round around a circular track is its circumference.Explanation:For a circular track, circumference $= \pi d$, where $d$ is the diameter.Given diameter $d = 100$ m, so circumference $= \dfrac{22}{7} \times 100$.Circumference $= 314.2857$ m.Number of rounds to cover 1000 m $= \dfrac{1000}{314.2857}$.This gives approximately $3.18$ rounds.To the nearest whole number, $3.18 \approx 3$.Answer:The man will run round the track 3 times.Correct option: A. 3