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In a certain language, if the digits 7 and 2 are interchanged and 3 and 4 are
interchanged, then what is the value of the following expression?
52 ÷ 4 - 7 × 5 + 3
33
17
15
13
- In the given expression 52 ÷ 4 - 7 × 5 + 3, we need to interchange 7 and 2; and 3 and 4 due to the language rule.
- After interchanging, the expression becomes 57 ÷ 3 - 2 × 5 + 4.
- Now, solve step by step:
- First, perform the division: 57 ÷ 3 = 19.
- Then, the expression is 19 - 2 × 5 + 4.
- Next, perform the multiplication: 2 × 5 = 10.
- Substitute back: 19 - 10 + 4.
- Finally, calculate 19 - 10 = 9, and then 9 + 4 = 13.
- Therefore, the correct option is Option 4: 13.
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