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

    Question

    A rectangular plot has its length and breadth in the

    ratio of 5:3. Aman riding a bicycle completes one round of this field along its perimeter at a speed of 6 kmph in 4 minutes. Then, What will be the area of the rectangular field?
    A 9375 Correct Answer Incorrect Answer
    B 9370 Correct Answer Incorrect Answer
    C 9575 Correct Answer Incorrect Answer
    D 1375 Correct Answer Incorrect Answer
    E none of these Correct Answer Incorrect Answer

    Solution

    ATQ, we can say that Let the ratio be taken as 5a and 3a Let the perimeter of rectangular is = 2(l + b) Perimeter = 2(5a + 3a) = 16a Distance covered by the man = 6 x (5/18) x (4 x 60) = 400m Now, 16a = 400 a = 400/16 a = 25m Area of the rectangular field is = (5a x 3a) = 15 a2  = 15 x 252 = 9375m2

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