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Multiple Choice Questions
1. The length of rectangular plot is thrice its breadth. If the area of the rectangular plot is 6075 sq. metres, what is its length ?
(A): 145 metres
(B): 130 metres
(C): 75 metres
(D): 45 metres
(E): None of these
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By: anil on 05 May 2019 01.40 am
Let Breadth = $$x$$ m
=> Length of rectangle = $$3x$$ m => Area of rectangle => $$x imes 3x = 6075$$ => $$x^2 = frac{6075}{3} = 2025$$ => $$x = sqrt{2025} = 45$$ $$ herefore$$ Length of rectangle = $$3 imes 45 = 135$$ m
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RBI Grade B 2007
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=> Length of rectangle = $$3x$$ m => Area of rectangle => $$x imes 3x = 6075$$ => $$x^2 = frac{6075}{3} = 2025$$ => $$x = sqrt{2025} = 45$$ $$ herefore$$ Length of rectangle = $$3 imes 45 = 135$$ m