Question

The length of a Rectangular plot is 6 m less than thrice its breadth Find the dimensions of the plot if its perimeter is 148 m​

Answer 1

Answer:

Step-by-step explanation:

let the breadth be b

by question, length(l) is 6 less than 3 times its breadth.

so, l = 3*b - 6

the perimeter = 148

or, 2( l + b) = 148  [ perimeter of rectangle = 2(l+b) ]

or, 2(3b - 6 + b) = 148

or, 2(4b - 6) = 148

or, 8b - 12 = 148

or, 8b = 148 + 12

or, b = (160/8)

therefore, b = 20

now, l = 3b - 6

          = 3*20 - 6

          = 60 - 6

          = 54