Question

'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 1

Answer:

C) x + y = 23

Step-by-step explanation:

Let old length be x and old breadth be y

New length = x-5

New breadth = y-5

New perimeter = 26

We know that,

Perimeter of rectangle = 2(x+y)

Here new perimeter will take new length and breadths,

2(x-5+y-5) = 26

x+y-10 = 13

x+y = 23