Question

The breadth of rectangle is 1/3rd of its length if perimeter is 40 metres find the area

Answer 1

refer to attachment ⤴️ ⤴️ for your answer

Answer 2

b=1/3*l

l=3b

perimeter=40

2(l+b)=40

2(3b+b)=40

2*4b=40

8b=40

b=5

l=3*5=15

area of the rectangle=l*b=15*5=75m(ans)