1 A rectangular yard is 20 rodslonger than it is wide. Its area is 240 – InterviewSolution

1.	1 A rectangular yard is 20 rodslonger than it is wide. Its area is 2400 squarerods. Find the dimensions of the yard.
Answer» Area=l*bArea=X(X+20)=2400x^2+20x=2400x^2+20x+100=2400+100(x+10)^2=2500x+10=+-50hencex=40so X+20=60hence dimensions40rods,60rods

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