General Intelligence & Reasoning | Questions
Mathematical Operations questions with solutions
Mathematical Operations is a General Intelligence & Reasoning topic for competitive exams. It is tested in RRB Ministerial and Isolated Categories, RRB Section Controller, RRB JE, RRB Technician and other exams. This page has 59 solved mathematical operations questions written to the official pattern, with a worked solution under each.
- Question 1Easy
If '&' means +, '#' means − and '@' means ×, then find the value of: 5 @ 3 & 2.
- A.25
- B.17Correct
- C.16
- D.9
- E.18
Show solution
Substituting the symbols: 5 × 3 + 2 = 15 + 2 = 17.
- Question 2Easy
If '#' means +, '¤' means − and '@' means ×, then find the value of: 6 @ 6 # 2.
- A.30
- B.22
- C.38Correct
- D.46
- E.54
Show solution
Substituting the symbols: 6 × 6 + 2 = 36 + 2 = 38.
- Question 3Easy
If '¤' means +, '#' means − and '@' means ×, then find the value of: 9 @ 8 ¤ 3.
- A.71
- B.61
- C.79
- D.89
- E.75Correct
Show solution
Substituting the symbols: 9 × 8 + 3 = 72 + 3 = 75.
- Question 4Easy
If '¤' means +, '&' means − and '@' means ×, then find the value of: 11 @ 8 ¤ 2.
- A.90Correct
- B.84
- C.80
- D.100
- E.96
Show solution
Substituting the symbols: 11 × 8 + 2 = 88 + 2 = 90.
- Question 5Easy
If '¤' means +, '&' means − and '@' means ×, then find the value of: 6 @ 6 ¤ 8.
- A.34
- B.40
- C.44Correct
- D.54
- E.48
Show solution
Substituting the symbols: 6 × 6 + 8 = 36 + 8 = 44.
- Question 6Easy
If '¤' means +, '&' means − and '#' means ×, then find the value of: 8 # 3 ¤ 2.
- A.34
- B.26Correct
- C.38
- D.18
- E.14
Show solution
Substituting the symbols: 8 × 3 + 2 = 24 + 2 = 26.
- Question 7Easy
If '@' means +, '¤' means − and '#' means ×, then find the value of: 11 # 5 @ 9.
- A.78
- B.64Correct
- C.62
- D.50
- E.66
Show solution
Substituting the symbols: 11 × 5 + 9 = 55 + 9 = 64.
- Question 8Easy
If '¤' means +, '#' means − and '@' means ×, then find the value of: 11 @ 6 ¤ 9.
- A.71
- B.63
- C.75Correct
- D.79
- E.87
Show solution
Substituting the symbols: 11 × 6 + 9 = 66 + 9 = 75.
- Question 9Easy
If '&' means +, '@' means − and '#' means ×, then find the value of: 9 # 6 & 5.
- A.63
- B.55
- C.61
- D.59Correct
- E.57
Show solution
Substituting the symbols: 9 × 6 + 5 = 54 + 5 = 59.
- Question 10Easy
If '¤' means +, '&' means − and '@' means ×, then find the value of: 9 @ 9 ¤ 9.
- A.94
- B.86
- C.80
- D.100
- E.90Correct
Show solution
Substituting the symbols: 9 × 9 + 9 = 81 + 9 = 90.
- Question 11Easy
If '#' means +, '&' means − and '@' means ×, then find the value of: 11 @ 4 # 6.
- A.62
- B.40
- C.38
- D.60
- E.50Correct
Show solution
Substituting the symbols: 11 × 4 + 6 = 44 + 6 = 50.
- Question 12Easy
If '#' means +, '&' means − and '@' means ×, then find the value of: 7 @ 2 # 8.
- A.20
- B.22Correct
- C.28
- D.16
- E.24
Show solution
Substituting the symbols: 7 × 2 + 8 = 14 + 8 = 22.
These are 12 of 59 mathematical operations questions in the bank. Attempt the rest with instant feedback in the practice drills, or under a clock in the mock tests.
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Frequently asked questions
How many Mathematical Operations questions are here?
This page shows 12 worked mathematical operations questions from a bank of 59, spanning 12 easy, 30 moderate and 17 hard. The full set is available to attempt in the timed-free practice drills and the mock tests.
Which exams ask Mathematical Operations questions?
Mathematical Operations is part of the General Intelligence & Reasoning syllabus for RRB Ministerial and Isolated Categories, RRB Section Controller, RRB JE, RRB Technician, RRB ALP, RRB Group D, RRB NTPC. Weightage varies by exam and stage — check each exam's page for its pattern.
Are these Mathematical Operations questions free, and are the answers reliable?
Yes. Every question is free, written in-house to the exam pattern rather than copied from a real paper, and the numeric answer keys are recomputed independently at build time — a wrong key fails the build rather than reaching you.