GATE 2011 AEROSPACE ENGINEERING (Q 61-65)

  1. If (2y+1)/(y+2) < 1, then which of the following alternatives gives the CORRECTrange of y?
    1. -2 < y < 2
    2. -2 < y < 1
    3. -3 < y < 1
    4. -4 < y < 1

    Answer:- -2 < y < 1

  2. A student attempted to solve a quadratic equation in x twice. However, in the first attempt, he incorrectly wrote the constant term and ended up with the roots as (4, 3). In the second attempt, he incorrectly wrote down the coefficient of x and got the roots as (3, 2). Based on the above information, the roots of the correct quadratic equation are
    1. (-3, 4)
    2. (3, -4)
    3. (6, 1)
    4. (4, 2)

    Answer:- (6, 1)

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