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Question

What will come in place of the question mark (?) in the following equation, if ‘+’ and ‘-’ are interchanged and ‘×’ and ‘÷’ are interchanged? 

6408 x 8 + 27 - 15 ÷ 10 = ?

This question was previously asked in
SSC CGL 2024 (Tier-I) Previous Year Paper (17-Sep-2024) (Shift 3)
The correct answer is

924

Given equation:

6408×8+27−15÷10=?

We are also given the following interchanges:

‘+’ and ‘-’ are interchanged.

‘×’ and ‘÷’ are interchanged.

Step 1: Apply the given interchanges

Replacing the operators accordingly:

‘+’ becomes ‘-’

‘-’ becomes ‘+’

‘×’ becomes ‘÷’

‘÷’ becomes ‘×’

Thus, the equation transforms into:

6408÷8−27+15×10=?

Step 2: Solve the equation using BODMAS (Bracket, Order, Division/Multiplication, Addition/Subtraction)

Step 2.1: Perform Division

6408÷8=801

Step 2.2: Perform Multiplication

15×10=150

Step 2.3: Perform Subtraction and Addition

801−27+150

801 - 27 + 150

801−27+150

 774+150=924

Step 3: Verify the Answer

The correct answer is 924, which corresponds to option 3.

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Similar Questions

  1. Select the option in which the numbers share the same relationship as that shared by the given pair of numbers: 

    4 : 32, 7 : 98

  2. Which two signs should be interchanged to make the following equation correct? 

    139 + 40 ÷ 5 - 168 × 3 = 283

  3. Which two numbers (not digits) should be interchanged to make the given equation correct? 

    15 + 5 × 8 - 72 ÷ 4 + 16 × 3 = 101

  4. What will come in the place of ‘?’ in the following equation, if ‘+’ and ‘–’ are interchanged and ‘×’ and ‘÷’ are interchanged?

    4 – 5 + 9 ÷ 6 × 2 = ?


Important Questions from Arithmetical Reasoning

  1. Select the option in which the numbers share the same relationship as that shared by the given pair of numbers: 

    4 : 32, 7 : 98

  2. Which two signs should be interchanged to make the following equation correct? 

    139 + 40 ÷ 5 - 168 × 3 = 283

  3. Which two numbers (not digits) should be interchanged to make the given equation correct? 

    15 + 5 × 8 - 72 ÷ 4 + 16 × 3 = 101

  4. What will come in the place of ‘?’ in the following equation, if ‘+’ and ‘–’ are interchanged and ‘×’ and ‘÷’ are interchanged?

    4 – 5 + 9 ÷ 6 × 2 = ?

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