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    If × means −,÷ means +, − means ÷, and + means ,× then what will be the value of the following expression?

    125 − 25 ÷ 4 + 25 × 4 + 10 =?

    This questions was previously asked in
    SSC CPO 9th Nov 2022 Shift 2

    68

    Incorrect Answer

    62

    Incorrect Answer

    70

    Incorrect Answer

    65

    Correct Answer
    Explanation:

    Let’s replace the operators as given:

    - × means -

    - ÷ means +

    - - means ÷

    - + means ×

    Expression: 125 - 25 ÷ 4 + 25 × 4 + 10

    Substitute the symbols:

    - 125 "-" 25 "÷" 4 "+" 25 "×" 4 "+" 10

    becomes

    - 125 ÷ 25 + 4 × 25 - 4 × 10

    Now, replace with the real meanings:

    - 125 ÷ 25 + 4 (-) 25 (-) 4 (-) 10

    But let's arrange as per question:

    - 125 (÷) 25 (+) 4 (×) 25 (-) 4 (×) 10

    Translating:

    - "-" is ÷, so 125 ÷ 25

    - "÷" is +, so + 4

    - "+" is ×, so × 25

    - "×" is -, so - 4

    - "+ 10" = × 10

    But to keep clarity, let's write it step by step:

    Given expression:

    125 - 25 ÷ 4 + 25 × 4 + 10

    Substitute operator meanings:

    - 125 - (÷) 25 ? 125 ÷ 25

    - ÷ 4 (+) ? + 4

    - + 25 (×) ? × 25

    - × 4 (+) ? - 4

    - + 10 ? × 10

    So:

    125 ÷ 25 + 4 × 25 - 4 × 10

    Now solve it step by step:

    - 125 ÷ 25 = 5

    - 5 + 4 = 9

    - 9 × 25 = 225

    - 225 - 4 = 221

    - 221 × 10 = 2210

    But this result is way too high. Let's check the order of operations:

    Alternatively, use brackets for clarity as per the standard order:

    125 - 25 ÷ 4 + 25 × 4 + 10

    Becomes:

    125 ÷ 25 + 4 × 25 - 4 × 10

    Step by step:

    - 125 ÷ 25 = 5

    - 4 × 25 = 100

    - 4 × 10 = 40

    Now, sum it up as per left to right:

    - 5 + 100 = 105

    - 105 - 40 = 65

    So, the value is 65.

    - Option 1: 68

    - Option 2: 62

    - Option 3: 70

    - Option 4: 65

    Correct answer is option 4: 65.

    ---

    Summary Statements:

    - Operator meanings are swapped as per question's instruction.

    - Substitute carefully and follow correct math order (BODMAS/PEMDAS).

    - Final calculation gives you 65.

    - Option 4 is correct.


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