Question

the distance around a rectangular field is 400 m the entropy least 16 metres more than breath calculate the length and breadth of the field

Answer 1

let the breadth be X
then length=X+16
perimeter of rectangular field=400m
perimeter of rectangle=2(l+b)
400=2(X+16+X)
400=2(2x+16)
400/2=2x+16
200=2x+16
200-16=2x
184=2x
184/2=X
92=X
breadth is 92 m
length=X+16=92+16
=108m