If the adjacent sides of a rectangle, whose perimeter is 66 m, are in the ratio 5 : 6, then what will be the area of the rectangle?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 270.
The ratio of length and breadth = 5 : 6
Let the length be 5x and breadth = 6x
Thus, 2 × (5x + 6x) = 66
⇒ 11x = 66 ⇒ x = 3
Thus, the length of the rectangle = 15 m
and, the breadth of the rectangle = 18 m
Area = 15 × 18 = 270 m2