Question

The length of a rectangle is 6 m less than three times its breadth and it's perimeter is 148 m

Answer 1

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Answer 2

Question: The length of a rectangle is 6 m less than three times its breadth and it's perimeter is 148 m ?

Method of Solution:

Let the Breadth be x cm

Then, In this Question It is given that , Length is 6 m less than three times its breadth.

New Breadth : (3x)

Now, According to the Question Statement!

Statement: Length is 6 m less than three times its breadth.

Length = 3x - 6

Now, We know that Perimeter of Rectangle = 2(Length+Breadth)

Perimeter= 2(3x-6+x)

Perimeter= 2(4x-6)

•°• Perimeter = 8x-12

°•° 148 = 8x-12

↪ 148+12 = 8x

↪ 160 = 8x

↪ x = 20

So, Length = 3x-6 ↪ 3(20) -6 ➡ 54 metres

Breadth = x ↪ 20