Question

Length of rectangle is 4 m less than 3 times its breadth if the perimeter of rectangle is 32 m find its length and breadth

Answer 1

Answer:

Step-by-step explanation:

Let the breadth of the rectangle be x.

Therefore length of the rectangle = 3x - 4

Perimeter of the rectangle = 32m

==> 2 ( l + b ) = 32m

==> 2 ( 3x - 4 + x ) = 32m

==> 4x - 4 = 32/2

==> 4x - 4 = 16

==> 4x = 16 + 4

==> 4x = 20

==> x = 20/4

==> x = 5

Hence, breadth of the rectangle = x

= 5m

Length of the rectangle = 3x - 4

= 3 × 5 - 4

= 15 - 4

= 11m

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Answer 2

Answer:

Step-by-step explanation:

given 32m perimeter

let breath be x

then length =3x-4

perimeter 2(l+b)

32=2(3x-4+x)

32=6x-8+2x

32=8x-8

40=8x

x=5

length=11

breath=5