The ratio between the length and the breadth of a rectangular plot is 7 : 5. If the perimeter of the plot is 432 metres, what is its area?
Choose the correct choice from the following.
A) 11320 sq.metres
B) 11260 sq.metres
C) 11280 sq.metres
D) 11340 sq.metres
E) None of these
Let the length and breadth be 7x and 5x respectively.   Then, P = 2(7x + 5x) = 432â‡’ x = 18   Area = 7 Ã— 18 Ã— 5 Ã— 18 = 11340 sq.m.   Answer 11340 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 432 metres, what is its area?