Preference

Question:

(2uv)2 + (u2 - v2)2 =?

  1. a.

    2uv

  2. b.

    (u2 + v2)2

  3. c.

    u2 + v2

  4. d.

    (2uv)2 + (u2 + v2)2

Answer: b

Question:

If x = 4, then (x2 + x1/2) =?

  1. a.

    16

  2. b.

    18

  3. c.

    20

  4. d.

    8

Answer: b

Question: The average of 6, 8 and 10 equals the average of 7, 9 and --

  1. a.
    8
  2. b.
    9
  3. c.
    11
  4. d.
    1
  5. e.
    7
Answer: a

Question: If 3x - 4y > 2x + 3y, then which of the following must be true?

  1. a.
    x > y
  2. b.
    y > x
  3. c.
    x > 0
  4. d.
    y > 0
  5. e.
    none of these
Answer: a

Question: Whichof the ratio is the greatest?

  1. a.
    3 : 7
  2. b.
    5 : 9
  3. c.
    7 : 11
  4. d.
    None
Answer: c

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