The ratio between the length and the breadth of a rectangular park is 3 : 2. If a man cycling along the boundary of the park at the speed of 12 km/hr completes one round in 6 minutes, then the area of the park (in sq. m) is:	Choose the correct choice:
A) 153601
B) 153600
C) 86400
D) 153603
E) 153604
Perimeter = Distance covered in 6 min. =(12000/60) x 6m = 1200 m.   Let length = 3x metres and breadth = 2x metres.   Then, 2(3x + 2x) = 1200 or x = 120.   Length = 360 m and Breadth = 240 m.   Area = (360 x 240) m2 = 86400 m2.   Answer: 86400
<result>C</result>
The ratio between the length and the breadth of a rectangular park is 3 : 2. If a man cycling along the boundary of the park at the speed of 12 km/hr completes one round in 6 minutes, then the area of the park (in sq. m) is: