Which two signs should be interchanged to make the following equation correct?…
2024
Which two signs should be interchanged to make the following equation correct?
18 − 23 × 455 ÷ 7 + 28 = 377
- A.
+ and ×
- B.
− and ×
- C.
− and +
- D.
÷ and −
Attempted by 2 students.
Show answer & explanation
Correct answer: B
Evaluating Option 2: Interchange '-' and '×'
If we swap '-' and '×', the equation becomes:
18 × 23 - 455 ÷ 7 + 28 = ?
Division: 455 ÷ 7 = 65
The equation becomes: 18 × 23 - 65 + 28
Multiplication: 18 × 23 = 414
The equation becomes: 414 - 65 + 28
Addition/Subtraction: 414 - 65 + 28 = 349 + 28 = 377
Since this result equals the target value of 377, Option 2 is the correct choice.