Question

The length of the rectangle is 5cm more than its breath. It's perimeter is five times its breath. Find the length and breath of the rectangle.

Answer 1

let the length of rectangle be 5+x
breadth of rectangle be x
perimeter be 5x
According to question,
perimeter= 2(l+b)
5x= 2(5+x+x)
5x= 10+2x+2x
5x= 10+4x
5x-4x= 10
x=10
now,
length of rectangle = 5+x
= 5+10
= 15
breadth of rectangle=x
=10

Answer 2

let length of the rectangle be=x
breath=x+5
perimeter=x+5*5
2*x+5+5=x+5*5
-25+10=x-2x
15=x