Question

The length of a rectangle is 3 more than its breadth. If the perimeter is 30m. Then its length is

Answer 1

let breadth to be X
let length to be X+3
perimeter 30 m
2(l+b) =30
2(X+3+X) = 30
2(2x+3) = 30
2x+3 = 30÷2
2x+3= 15
2x =15-3
2x= 12
x = 6
so it length is x+3 = 6+3 = 9
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Answer 2

Step-by-step explanation:

let breadth to be X

let length to be X+3

perimeter 30 m

2(l+b) =30

2(X+3+X) = 30

2(2x+3) = 30

2x+3 = 30÷2

2x+3= 15

2x =15-3

2x= 12

x = 6

So it length is x+3 = 6+3 = 9