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Question

 If ‘A’ stands for ‘÷’, ‘B’ stands for ‘×’, ‘C’ stands for ‘+’ and ‘D’ stands for ‘−’, what will come in place of the question mark (?) in the following equation?
36 B 17 D 59 C 224 A 7 = ? 

This question was previously asked in
SSC Selection Post 2024 Question Paper (26-Jun-2024) (Shift-4)
The correct answer is
585

Solving the Symbol Substitution Equation

This problem requires us to decode a mathematical equation where letters represent arithmetic operators. We need to substitute the given letters with their corresponding symbols and then solve the equation using the standard order of operations (BODMAS/PEMDAS).

Understanding the Symbol Substitutions

The problem provides the following mapping:

  • 'A' represents '÷' (division)
  • 'B' represents '×' (multiplication)
  • 'C' represents '+' (addition)
  • 'D' represents '−' (subtraction)

Applying Substitutions to the Equation

The given equation is: 36 B 17 D 59 C 224 A 7 = ?

Substituting the symbols based on the provided key, we get:

36 × 17 - 59 + 224 ÷ 7 = ?

Calculating the Result using Order of Operations (BODMAS/PEMDAS)

The BODMAS/PEMDAS rule dictates the order in which operations should be performed: Brackets/Parentheses, Orders/Exponents, Division and Multiplication (from left to right), Addition and Subtraction (from left to right).

  1. Division: First, calculate 224 ÷ 7.

    $$ 224 \div 7 = 32 $$

    The equation now becomes: 36 × 17 - 59 + 32 = ?

  2. Multiplication: Next, calculate 36 × 17.

    $$ 36 \times 17 = 612 $$

    The equation now becomes: 612 - 59 + 32 = ?

  3. Subtraction: Perform subtraction from left to right. Calculate 612 - 59.

    $$ 612 - 59 = 553 $$

    The equation now becomes: 553 + 32 = ?

  4. Addition: Finally, perform addition. Calculate 553 + 32.

    $$ 553 + 32 = 585 $$

Final Result

Therefore, the value that comes in place of the question mark (?) is 585.

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Similar Questions

  1. Which two numbers (not individual digits) should be interchanged to make the given equation correct?
    $56+ (11 \times 2) - (52 \div 4) + 16 = 76$

  2. What will come in the place of '?' in the following equation, if '+' and '-' are interchanged and also 'x' and '$\div$' are interchanged?
    $13 \div 8-96 \times 6+17=?$

  3. Which two numbers (not digits of the numbers), from amongst the given options, should be interchanged to make the given equation correct? 

    $12 \times 9 + 27 \div 3 - 5 = 60$

  4. Which two signs should be interchanged to make the given equation correct?
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  6. Which two signs should be interchanged to make the given equation correct? 

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  7. What will come in the place of the question mark (?) in the following equation, if '÷' and '-' are interchanged and 'x' and '+' are interchanged? 

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  8. Which two numbers (not individual digits) should be interchanged to make the given equation correct?
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  9. Which two signs need to be interchanged to make the following equation correct? 
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  10. Which two signs should be interchanged to make the given equation correct?
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Important Questions from Bodmas Rule

  1. Solve: {7.88 × 2 + 2.4 × 5 - 242.4 ÷ 4 + [9.2 × 4 - 2.46 of 3 + (36.3 ÷ 3 - 1.42 × 2)]} 

  2. What will come in the place of question mark (?) in the given expression?

    (420 ÷ 12 × 35 + 452- 152) = ?2

  3. What will come in place of the question mark ‘?’ in the following question?

    (44 of 15) – [(450 × 240 ÷ 60 – 40) ÷ 80 × 25 + 50] – 10 = ?
  4. Simplify: 92 - 18 ( 9 + 36 ÷ 3 × 12 - 27 × 3) + 51

  5. Simplify the following expression.

    \(\rm \frac{3}{5}\ of\ \left\{\left(48\div\overline{36\div9}\times\frac{1}{6}\right)+\frac{1}{3}\right\}=?\)

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