Which two digits should be interchanged in the given equation to make it mathematically correct 20 d...........

Logical Reasoning (MTS) Arthemetic Operations

Which two digits should be interchanged in the given equation to make it mathematically correct?

20 ÷ 7 × 2 + 5−3 = 12

This questions was previously asked in

SSC MTS 11th July 2022 Shift-2

7 and 2

7 and 5

2 and 5

2 and 3

- Original equation: 20 ÷ 7 × 2 + 5 - 3 = 12

- Option 1: Interchange 7 and 2: 20 ÷ 2 × 7 + 5 - 3

- Calculate: 20 ÷ 2 = 10, 10 × 7 = 70, 70 + 5 = 75, 75 - 3 = 72

- Result is not 12.

- Option 2: Interchange 7 and 5: 20 ÷ 5 × 2 + 7 - 3

- Calculate: 20 ÷ 5 = 4, 4 × 2 = 8, 8 + 7 = 15, 15 - 3 = 12

- Result matches 12.

- Option 3: Interchange 2 and 5: 20 ÷ 7 × 5 + 2 - 3

- Calculate: 20 ÷ 7 ˜ 2.857, 2.857 × 5 = 14.285, 14.285 + 2 = 16.285, 16.285 - 3 = 13.285

- Result is not 12.

- Option 4: Interchange 2 and 3: 20 ÷ 7 × 3 + 5 - 2

- Calculate: 20 ÷ 7 ˜ 2.857, 2.857 × 3 = 8.571, 8.571 + 5 = 13.571, 13.571 - 2 = 11.571

- Result is not 12.

Correct Answer: Option 2. Interchanging 7 and 5 makes the equation correct.

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