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

    Question

    I. 2b2- 37b + 143 = 0 II.

    2a2+ 15a - 143 = 0
    A 1 Correct Answer Incorrect Answer
    B 2 Correct Answer Incorrect Answer
    C 3 Correct Answer Incorrect Answer
    D 4 Correct Answer Incorrect Answer
    E 5 Correct Answer Incorrect Answer

    Solution

    I. 2b2- 37b + 143 = 0 2b2-11b - 26b + 143 = 0 b(2b-11) - 13(2b-11) = 0 (b-13) (2b-11) = 0 b = 13, 5.5 II. 2a2+ 15a - 143 = 0 2a2+ 26a - 11a - 143 = 0 2a(a+13) - 11(a+13) = 0 (2a-11) (a+13) = 0 a = -13, 5.5 Hence a ≤ b.

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