The length of rectangle is thrice its breadth and its perimeter is 40 m, find the area of the rectangle? Select the correct option:
A) 432 B) 212 C) 75 D) 992 E) 212

Rationale: "2 ( 3 x + x ) = 40 l = 15 b = 5 lb = 15 * 5 = 75 answer : c"
Answer: C