a rectanglur field has length three times the breadth and the perimeter is 800m find the cost of digging the ground at Rs 8per m2. (give full answer by sloving it!!)
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Answer:
Breadth =x
Length =3x
Perimeter =2(length+breadth)
Perimeter ⇒2(x+3x)=400
⇒2(4x)=400
⇒x=50
Length =3x=150m
Breadth =x=50m
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