An athlete ran 4 complete rounds along a rectangular field.The length of the field was thrice its width.Find the length of the field if the total distance he ran was 800m
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As per given condition, l=3b → b = l/3
The athlete completed 4 rounds; i.e., 4(perimeter of the field)
As per second given condition, the athlete ran 800m
Therefore,
4(perimeter) = 800
Perimeter = 200
2(l+b) = 200
l+b = 100
l+(l+3) = 100
3l+l = 300
4l = 300
l = 75
Hence, the length of the field is 75m.
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