The ratio between the length and the breadth of a rectangular plot is 7 : 5. If the perimeter of the plot is 288 metres, what is its area?
Choose the most appropriate option
A) 1320 sq.metres B) 3260 sq.metres C) 4280 sq.metres D) 5040 sq.metres E) None of these
Let the length and breadth be 7x and 5x respectively.   Then, P = 2(7x + 5x) = 288 â‡’ x = 12   Area = 7 Ã— 12 Ã— 5 Ã— 12 = 5040 sq.m.   Answer 5040 sq.metres
<result>D</result>
The ratio between the length and the breadth of a rectangular plot is 7 : 5. If the perimeter of the plot is 288 metres, what is its area?