Question

the length of a rectangular hall is 3 metres more than double of its breadth if its perimeter is 66 M what is its length​

Answer 1

Answer:

Here is your answer mate .

Formula =2(l+b)

Let breadth be x

length =3+2x

2(3+2x+x)=66

3x+3=66/2

3x+3=33

3x=33-3

3x=30

x=30/3

x=10

Length =3+2*10

23m

Hope you got it mate.

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Answer 2

Answer:

length = 23 m

Step-by-step explanation:

let breadth = b m

then, length= 2b+3 m

perimeter= 66 m

2(2b + 3 + b) = 66

2(3b + 3 ) = 66

6b + 6 = 66

6b = 66 - 6

6b = 60

b = 60/6

b = 10

Then, length = 2*10+3 = 23 m