1.

Length of a rectangle exceeds its breadth by 4m if the perineter of the rectangle is 84 m find its lenght and breadth

Answer»

Take breadth as x
length as x+4
perimeter = 2× (Length +breadth)
84 = 2 (x+4 +x)
84 = 2X + 8 + 2x
84 = 4X + 8
84-8 = 4x
4x = 76
x = 19


breadth = x = 19
length = x + 4 = 19 +4 = 23



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