RRB JE · General Intelligence & Reasoning

Mathematical operations

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About this topic in RRB JE

  • In the exam pattern: First Stage Computer Based Test (CBT-I), General Intelligence & Reasoning: 25 questions, 25 marks (RRB notice, 13 Aug 2026).
  • Next exam day: CBT-II exam (expected): 15 Feb 2027 (Expected — an estimate, not announced).

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  • Q1 · Mathematical operations · MEDIUM

    If the symbols are redefined as follows: '+' means 'division', '-' means 'multiplication', 'x' means 'addition', and '/' means 'subtraction', what is the value of the expression 16 + 4 x 6 - 8 / 2?

  • Q2 · Mathematical operations · MEDIUM

    Which of the following signs should be interchanged to make the equation 20 + 5 x 4 - 10 = 10 correct?

  • Q3 · Mathematical operations · MEDIUM

    If 'a' means 'multiplied by', 'b' means 'plus', 'c' means 'minus' and 'd' means 'divided by', what is the value of 4 a 2 c 3 b 2 d 2?

  • Q4 · Mathematical operations · MEDIUM

    If the symbols are redefined as follows: '+' means 'divide', '-' means 'multiply', 'x' means 'subtract', and '/' means 'add'. What is the value of the expression: 18 + 3 - 4 x 2 / 5?

  • Q5 · Mathematical operations · HARD

    Which two signs should be interchanged to make the following equation correct? 9 + 6 x 3 - 12 / 4 = 54

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