Preference

Question: If n and p are both odd numbers, which of the following must be an even number?

  1. a.
    np + 2
  2. b.
    n + p
  3. c.
    n + p + 1
  4. d.
    np
  5. e.
    none of them
Answer: b

Question: If an integer y is subtracted from an integer x, and the result is greater than x, then y must be :

  1. a.
    Equal to x
  2. b.
    Less than 0
  3. c.
    Less than x
  4. d.
    Greater than 0
  5. e.
    None of these
Answer: b

Question: The positive difference between the squares of any two consecutive integers is always---

  1. a.
    an even integer
  2. b.
    an odd number
  3. c.
    a prime number
  4. d.
    the square of an integer
Answer: b

Question: Find the value of (0.1 × 0.01 × 0.001) ÷ (0.2 × 0.02 × 0.002)

  1. a.
    14
  2. b.
    18
  3. c.
    21
  4. d.
    28
  5. e.
    None
Answer: e

Question: If 18 is 15 percent of 30 percent of a certain number, what is the number?

  1. a.
    9
  2. b.
    36
  3. c.
    40
  4. d.
    81
  5. e.
    400
Answer: e

Question: If 1.4 is halfway between two points x and y what sre the possible values of x and y?

  1. a.
    -1.4 and 2.4
  2. b.
    -1 and 2
  3. c.
    0.3 and 3.1
  4. d.
    0.15 and 1.55
  5. e.
    None of these
Answer: c

Question: If n is an even integer which of the following must be an odd integer?

  1. a.
    3(n + 1)
  2. b.
    n - 2
  3. c.
    3n + 5
  4. d.
    n3
  5. e.
    None of these
Answer: a, c

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