Question

The area of rectangular park is 4800 sq m. If the ratio of the length and breadth is 3:4,find its lenght and breadth

Answer 1

Let the length and breadth of park be 3x and 4x respectively.

A/q; Area=lb
4800=3x × 4x
4800=12x^2
x^2=4800/12
$x = \sqrt{400}$
x=20 m

Answer 2

do it with 12xy=4800
where x is length and y is breadth