Preference

Question: The average of three numbers is V. If one of the numbers is Z and another is Y, then what is the remaining number?

  1. a.
    z/x - z - y
  2. b.
    3V - Z - Y
  3. c.
    V - Z - Y
  4. d.
    ZY - V
  5. e.
    z/v - 3 - y
Answer: b

Question: If 8x + 8y = 64, what is the average of x and y?

  1. a.
    16
  2. b.
    4
  3. c.
    0
  4. d.
    1
  5. e.
    None of these
Answer: b

Question: Average of P numbers is x and average of N numbers is y. Find the average of all of the numbers.

  1. a.
    (Px + Ny)/(p + N)
  2. b.
    (Px + Ny)/xy(P + N)
  3. c.
    x + y
  4. d.
    (x + y)/(P + N)
  5. e.
    (x + y)/2
Answer: a

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