How many times, correct to the nearest whole number, will...
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?
3
4
5
6
Correct answer is A
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 = 227 x 100
= 314.2857m
To cover a distance of 1000m, he is going to round the circular track for 1000314.2857 = 3.18
≊ 3 (to the nearest whole number)
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