Question

The difference between the length and breadth of a rectangle is 23m. If its perimeter is 206m, then its area is

Answer 1

l - b = 23              
and
     2(l+b) = 206
       l+b = 103
 from l-b=23 and l+b=103
we get that l = 63 m and b = 40 m
area of rectangle = l*b
                            = 63*40
                            = 2520 m^2 

Answer 2

L-B=23
perimeter=206 (ie =2(l+b))
L+B=103
L-B=23
2L=126
L=63m,B=40m
area LB=2520m2