Sides of a rectangular park are in the ratio 3: 2 and its area is 4704 sq m, the cost of fencing it at 50 ps per meter is?  Choose the most appropriate option.
A) 287  B) 1287  C) 140  D) 988  E) 271

Rationale: "3 x * 2 x = 4704 = > x = 28 2 ( 84 + 56 ) = 280 m 280 * 1 / 2 = rs . 140 answer : c"
Answer: C