By interchanging the two numbers 20 and 36 which of the following equations will be correct I 55 42 ...........

Logical Reasoning (MTS) Arthemetic Operations

By interchanging the two numbers 20 and 36, which of the following equations will be correct?

I. 55 + 42 − 36 × 20 ÷ 9 = 17

II. 20 ÷ 2 × 36 + 81 − 41 = 400

This questions was previously asked in

SSC MTS 19th July 2022 Shift-3

Only I

Only II

Both I and II

Neither I nor II

- Equation I Analysis:

- Original: 55 + 42 - 36 × 20 ÷ 9 = 17

- Swap 20 and 36: 55 + 42 - 20 × 36 ÷ 9

- Simplify: 55 + 42 - 720 ÷ 9 = 97 - 80 = 17

- This is correct after swapping.

- Equation II Analysis:

- Original: 20 ÷ 2 × 36 + 81 - 41 = 400

- Swap 20 and 36: 36 ÷ 2 × 20 + 81 - 41

- Simplify: 18 × 20 + 81 - 41 = 360 + 40 = 400

- This is also correct after swapping.

- Conclusion:

- Both equations become correct after interchanging 20 and 36.

- Correct Answer:

- Option 3: Both I and II

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