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Problem-Solving By Substitution
Interchange Of Signs And Numbers

If '?' represents addition, '?' represents subtraction, '?' represents multiplication, and '?' represents division, what is the result of 8 ? 4 ? 2 ? 3 ? 2?

Answer: A. 18
Following the operations: 8 + 4 - 2 * 3 / 2 = 12 - 6 / 2 = 12 - 3 = 9.
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