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 5 minutes, then the area of the park (in sq. m) is: Choose the correct option
A) 153601 B) 153600 C) 153602 D) 60000 E) 153604
Perimeter = Distance covered in 5 min. =(12000/60) x 5m = 1000 m.   Let length = 3x metres and breadth = 2x metres.   Then, 2(3x + 2x) = 1000 or x = 100.   Length = 300 m and Breadth = 200 m.   Area = (300 x 200) m2 = 60000 m2.   Answer: 60000
<result>D</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 5 minutes, then the area of the park (in sq. m) is: