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

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?

Solution -

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