Question

2. The length of a rectangular field is twice its breadth. Meghna jogged around it
5 times and covered a distance of 3 km. What is the length of the field?​

Answer 1

Answer:

200 m

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Answer 2

Step-by-step explanation:

breadth=b

length=2b

Meghna jogged 5 times.

Perimeter=2(l+b)

Therefore,

Distance covered = 5{2(l+b)}

3 km=5{2(l+b)}

Substituting the value, we get:

3 km=5{2(2b+b)}

3km=5{2×3b}

3km=5×6b

3km=30b

3/30=b

1/10=b

breadth=b=1/10=0.1km=100m

length=2b=0.1×2=0.2km=200m

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