New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    In a rectangle, the ratio of length and breadth is 3:2

    and its perimeter is 240 cm, then what the area of the rectangle?
    A 1440 sq.cm Correct Answer Incorrect Answer
    B 1728 sq.cm Correct Answer Incorrect Answer
    C 2688 sq.cm Correct Answer Incorrect Answer
    D 2880 sq.cm Correct Answer Incorrect Answer
    E 3456 sq.cm Correct Answer Incorrect Answer

    Solution

    Let the length of the rectangle be 3x cm and its breadth is 2x cm. Then, Perimeter = 2(3x + 2x) ⇒ 240 = 10x ⇒ x = 24 Hence, the area of the rectangle = 3x × 2x = 6x2 = 6 × 242 = 3456 cm2.

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