The length of rectangular field is twice its breath. I jogged around it 5 times and covered 5km. What is its breadth?

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Solution

Breadth = b
Length = l = 2b
length covered in one round = perimeter of rectangle
= 2 (l+b)
= 2(2b+b)
=2x3b
= 6b
length covered in 5 rounds = 5 x perimeter
= 5 x 6b
5 km = 30 b
b = $\frac{5}{30}$ km
= $\frac{5 X 1000}{30}$
= $\frac{500}{3}$ m

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The length of rectangular field is twice its breath. I jogged around it 5 times and covered 5km. What is its breadth?

Breadth = b Length = l = 2b length covered in one round = perimeter of rectangle = 2 (l+b) = 2(2b+b) =2x3b = 6b length covered in 5 rounds = 5 x perimeter = 5 x 6b 5 km = 30 b b = 530 km = 5X100030 = 5003 m

Breadth = b
Length = l = 2b
length covered in one round = perimeter of rectangle
= 2 (l+b)
= 2(2b+b)
=2x3b
= 6b
length covered in 5 rounds = 5 x perimeter
= 5 x 6b
5 km = 30 b
b = $\frac{5}{30}$ km
= $\frac{5 X 1000}{30}$
= $\frac{500}{3}$ m