Question

In a rectangle if the length is increased and breadth is decreased by 3 metres and area is reduced by 18 m.

Answer 1

Answer:

Let length = x metre

breadth = y metre

Area = (xy) m²

new length = (x+3)

new breadth = (y-3)

A/q,

(x+3)(y-3) = (xy) - 18

(xy - 3x + 3y - 9) = (xy) - 18

3(x-y) = 9

(x-y) = 3

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