Q. 1 B3.9( 15 Votes )

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

A. x – y = 8

B. x + y = 8

C. x + y =23

D. 2x + y = 21

Answer :

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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