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Logical Reasoning :: Symbols and Notations

  1. If * stands for 'addition', / stands for 'subtraction', + stands for 'multiplication', and - stands for 'division', then 20 * 8 / 8 - 4 + 2 = ?
  2. A.
    80
    B.
    25
    C.
    24
    D.
    5

  3. If - means *, * means +, + means / and / means -, then 40 * 12 + 3 - 6 / 60 = ?
  4. A.
    7.95
    B.
    16
    C.
    44
    D.
    479.95
    E.
    None of these

  5. If + means /, * means -, / means * and - means +, then 8 + 6 * 4 / 3 - 4 = ?
  6. A.
    -12
    B.
    -20 / 3
    C.
    12
    D.
    20 / 3
    E.
    None of these

  7. If * means /, - means *, / means + and + means -, then (3 - 15 / 19) * 8 + 6 = ?
  8. A.
    8
    B.
    4
    C.
    2
    D.
    -1

  9. If + means *, / means -, * means / and - means +, what will be the value of 4 + 11 / 5 - 55 = ?
  10. A.
    -48.5
    B.
    -11
    C.
    79
    D.
    91
    E.
    None of these

  11. If * means +, / means -, - means * and + means /, then 8 * 7 - 8 + 40 / 2 = ?
  12. A.
    1
    B.
    2 7 - 5
    C.
    3 8 - 5
    D.
    44
    E.
    None of these

  13. If + means /, - means *, / means -, * means +, what will be the value of 8 + 6 / 4 - 7 * 3 ?
  14. A.
    - 71 / 3
    B.
    - 23 / 2
    C.
    12
    D.
    14
    E.
    None of these

  15. If P denotes +, Q denotes *, R denotes / and S denotes -, then 18 Q 12 P 4 R 5 S 6 = ?
  16. A.
    36
    B.
    53
    C.
    59
    D.
    65
    E.
    None of these

  17. In a certain code language, '+' means '/', '/' means '*', '*' means '-', '-' means '+'.
    5 * 10 - 15 / 20 + 25 / 30
  18. A.
    210
    B.
    240
    C.
    355
    D.
    245
    E.
    360

  19. In a certain code language, '+' means '*', '*' means '-', '-' means '/' and '/' means '+'.
    10 + 10 * 10 - 10 / 10
  20. A.
    109
    B.
    10
    C.
    19
    D.
    11
    E.
    101