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

    Question

    A lad was asked his age by his friend. The lad

    said “The number you get when you subtract 25 times my age from twice the square of my age will be thrice your age. If the friends age is 14 then what will be the age of lad. 
    A 21 Correct Answer Incorrect Answer
    B 25 Correct Answer Incorrect Answer
    C 28 Correct Answer Incorrect Answer
    D 16 Correct Answer Incorrect Answer
    E 14 Correct Answer Incorrect Answer

    Solution

    Let the age be x    As per the question    2x 2 –25x-42=0   X= 28 or –3   So, the required answer is 28 years.

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