Question

the length of the rectangular floor is 20 metres for than its breadth if the perimeter of the floor is 280 metres what is its length ​

Answer 1

Answer:

80m

Step-by-step explanation:

Length=20m+Breadth

Perimeter=2(l+b)

=2{(20+b)+b}

=2(20+2b)

=40+4b

Hence 40+4b=280m

=>4b=240m

=>b=60m

=>l=20+b

=>l=20+60=80m

Therfore Length=50m

Answer 2

Answer:Breadth=60 metres, length=80metres

Pls refer my attachment:

Hope it helps.....