After interchanging which two numbers not digits will the value of the given expression be lsquo 81 ...........

Logical Reasoning (MTS) Arthemetic Operations

After interchanging which two numbers (not digits) will the value of the given expression be ‘81’?

798 + 27 − 719 ÷ 6 × 5

This questions was previously asked in

SSC MTS 5th July 2022 Shift-3

5 and 27

27 and 6

798 and 719

6 and 5

- To find which two numbers should be interchanged to make the expression equal to 81, let's first evaluate it.

- The original expression is: 798 + 27 - 719 ÷ 6 × 5

- Calculating the result:

- First, divide 719 by 6: ˜ 119.83

- Then multiply the result by 5: ˜ 599.17

- Subtract this from 798 + 27: 825 - 599.17 ˜ 225.83

- Options Analysis:

- Option 1: If you interchange 5 and 27, the expression becomes: 798 + 5 - 719 ÷ 6 × 27. This results in a different outcome.

- Option 2: If you interchange 27 and 6, the expression becomes: 798 + 6 - 719 ÷ 27 × 5. This does not result in 81.

- Option 3: If you interchange 798 and 719, the expression becomes: 719 + 27 - 798 ÷ 6 × 5. This brings us closer to the desired result.

- Option 4: If you interchange 6 and 5, the expression becomes: 798 + 27 - 719 ÷ 5 × 6. This does not yield 81.

- Correct Answer: Option 3: 798 and 719

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