Question

the length of a rectangular field is 8meters less than twice its breadth . if the perimeter of the rectangular field is 56 metres ,find its length and breath ​

Answer 1

Answer:

length is 16

breath is 12

Answer 2

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Let the breadth = x

Length = 2x-8

Perimeter = 2×(l+b)

= 2×(x+2x-8)

= 2×(3x-8)

According to problem

2×(3x-8)=56

3x-8= $\cancel\dfrac{56}{2}$

3x-8=28

3x=28+8

3x=36

x=$\cancel\dfrac{36}{3}$

$\therefore$Breadth= x=12m

$\therefore$Length= 2x-8=2×12-8=24-8=16m