the length of the 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
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Answered by
241
Let breadth of field be 'x' m
=> length of field = 2x m
Meghna jogged along the perimeter of field.
∴ 1 round = 2(x+2x) = 6x m
∴ 5 rounds = 5*6x = 30x m
=> 3000 m = 30x m
=> x = 100m
∴ Breadth = 100m
∴ Length = 2(100) = 200m
=> length of field = 2x m
Meghna jogged along the perimeter of field.
∴ 1 round = 2(x+2x) = 6x m
∴ 5 rounds = 5*6x = 30x m
=> 3000 m = 30x m
=> x = 100m
∴ Breadth = 100m
∴ Length = 2(100) = 200m
Answered by
85
Perimetre of rectangle=2×(2x+x)
She jogged 5 times so,5×6x=30x
30x=3000m
X=100m
L=2x=2×100=200m
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