Question 47
The breadth of a rectangular field is 60% of its length. If the perimeter of the field is 800 m, what is the area of the field?
Solution
Length = l.
So, breadth=0.60l.
So, 2(l+0.60l)=800
or, 1.6l=400
or, l=250.
So, breadth= 150 m.
So, area of the fence=$$ 250×150 m^2$$
=$$37500 m^2$$.
B is correct choice.
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