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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