Question

The length of a rectangular floor is 20 m, more than it's breadth if the perimeter of the floor is 280m, what is it's length

Answer 1

let, breadth=x, lenght=x+20

then,
2{x+x+20}=280
2x+20=140
2x=120
x=60m= breadth
lenght =60+20=80m
please mark as brainlist answer.