The sides of a rectangle are in the ratio 4:3 and its area is 972sq.m find the perimeter of rectangle	Choose the correct answer
A) 120 m	B) 122 m	C) 124 m	D) 126 m	E) 128 m

Rationale: explanation : let 4 x and 3 x be sides of the rectangle we know that area of rectangle = l × b 4 x × 3 x = 972 12 x 2 = 972 x 2 = 81 x = 9 therefore length = 4 x = 4 × 9 = 36 m breadth = 3 x = 3 × 9 = 27 m therefore perimeter = 2 ( l + b ) = 2 ( 36 + 27 ) = 126 m answer : option d
Answer: D