The length of a rectangular field is twice its width. Ramesh jogged around it 5 times and covered a distance of 3 km...

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The length of a rectangular field is twice its width. Ramesh jogged around it 5 times and covered a distance of 3 km.
What is the length of the field?

posted Dec 9, 2016

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Let L be 2x
W be x
Circumference 2(2x+x)
Now 5×2(3x)=3000
x=30
Length=60 meters

The length of a rectangular field is twice its width. Ramesh jogged around it 5 times and covered a distance of 3 km.
What is the length of the field?

let width=x then length=2x

perimeter of rectangle=2(length+width)

3km=3000m

3000=5[2(2x+x)]
3000=10*3x
30x=3000
x=100
so length=2*100=200m

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