The length of a rectangular field is twice its breadth. A girl jogged around it 5 times and covered a distance of 3km. What is the length of the field?
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assume perimeter "p",length "l",breadth "b"
p*5=3000m
p=3000/5
p=600
p=2(l+b)
p=2l+2b
p=4b+2b(lenght is twice of b)
p=6b
6b=600
b=600/6
b=100m
l=200m
p*5=3000m
p=3000/5
p=600
p=2(l+b)
p=2l+2b
p=4b+2b(lenght is twice of b)
p=6b
6b=600
b=600/6
b=100m
l=200m
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