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Latest Logical Reasoning Questions & Answers

  • Look at this series: 7, 10, 8, 11, 9, 12, . . . 
    What number should come next

  • A7
  • B10
  • C15
  • D18
  • Explanation:

    This is a simple alternating addition and subtraction series.
    In the first pattern, 3 is added;
    In the second pattern, 2 is subtracted.

    Rule =(1st number) (1st number + 3 = 2nd number) (2nd number - 2 = 3rd number) (3rd number + 3 = 4th number)
    Now (7) (7 + 3 = 10) (10 - 2 = 8) (8 + 3 = 11) (11 - 2 = 9) (9 + 3 = 12) (12 - 2 = 10)...
    So the answer is b = 10.

  • 3 13 18 23 28 33
    What number should come next

  • A38 43
  • B37 42
  • C38 44
  • D39 44
  • Explanation:

    In this simple addition series, each number is 5 greater than the previous number.

    Rule = (1st no) (1st no + 5 = 2nd no) (2nd no + 5 = 3rd no) . . .
    Now (3) (3 + 5 = 8) (8 + 5 = 13) (13 + 5 = 18) (18 + 5 = 23) (23 + 5 = 28) (28 + 5 = 33) (33 + 5 = 38) (38 + 5 = 43)
    So the answer is c = 38  43

  • 18 21 25 18 29 33 18
    What numbers should come next

  • A43 18
  • B41 44
  • C37 41
  • D38 41
  • Explanation:

    This is a simple addition series with a random number, 18, interpolated as every third number.
    In the series, 4 is added to each number except 18, to arrive at the next number.

  • 2, 10, 40, 120,____

  • A240
  • B360
  • C470
  • D210
  • Explanation:

    Here the series is a multiplication series.

    The order of the multiplication is ×5, ×4, ×3, ×2 

    120 × 2 = 240