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Problem-Solving By Substitution
Interchange Of Signs And Numbers

If '>' means addition, '<' means subtraction, '=' means multiplication, and '?' means division, what is the value of 3 > 2 < 1 = 4 ? 2?

Answer: A. 12
3 + 2 - 1 × 4 ÷ 2 = 5 - 1 × 4 ÷ 2 = 5 - 2 = 3, which is incorrect. Re-evaluate the operations.
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