Q1 of 25 Page 91

'When 5 is subtracted from length and breadth of the rectangle, the perimeter becomes 26.' What is the mathematical form of the statement?

Let the length be 'x' and breadth be 'y' units.


Perimeter of triangle = 2(x + y) units


If 5 is subtracted from length and breadth


Perimeter = 26 units eq.[Given]


⇒ 2( x - 5 + y - 5) = 26


⇒ 2(x + y - 10) = 26


⇒ x + y - 10 = 13


⇒ x + y = 23

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