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Question

Perimeter of rectangle is 2.4m less than (2/5) of perimeter of square. If the perimeter of square is 40m then find the length & breadth.. Given breadth is (1/3) of the length..

I have also a solution which I wnna be post..!!

Answer 1

Perimeter of rectangle= 2/5 ( perimeter of square)
So, ACCORDING TO QUESTION,
2(L+L/3)= (2/5*40)-2.4
2(3L+L)/3= 16-2.4
2*4L/3=13.6
L=(13.6*3)/8*10
L=5.1m
B=5.1/3= 1.7m (answer)

Answer 2

Your answer is correct, but where did that 10 come from in the line above it?