2018
Mathematics
JAMB
How many times, correct to the nearest whole number, will a man run round a circular track of diameter 100m to cover a distance of 1000m?
A.
3
B.
4
C.
5
D.
6
Correct Answer: 3
Explanation
In terms of distance, a circle has a total distance or perimeter of 2πr or πd Where r is radius and d is the diameter So perimeter = 22/7 x 100 = 314.2857m To cover a distance of 1000m, he is going to round the circular track for 1000/314.2857 = 3.18 ≊ 3 (to the nearest whole number)
In terms of distance, a circle has a total distance or perimeter of 2πr or πd Where r is radius and d is the diameter So perimeter = 22/7 x 100 = 314.2857m To cover a distance of 1000m, he is going to round the circular track for 1000/314.2857 = 3.18 ≊ 3 (to the nearest whole number)THIS WEEK's
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