Question

the length and breadth of a rectangular plot are in the ratio 9 : 5 if its perimeter is 280m, find its area

Answer 1

let the length be 9x
and breadthbe 5x
perimeter=2 (l+b)
280=2 (14x)
x=10
length=90
breadth=50
area of rectangle =l×b=90×50=4500m