Home  / Verbal Reasoning  / Mathematical Operations  / Problem-Solving By Substitution
Problem-Solving By Substitution
Interchange Of Signs And Numbers

If '?' means division, '?' means multiplication, '?' means addition, and '?' means subtraction, calculate 12 ? 4 ? 3 ? 5 ? 2.

Answer: A. 20
12 ÷ 4 × 3 + 5 - 2 = 3 × 3 + 5 - 2 = 9 + 5 - 2 = 12.
Posted in:  Problem-Solving By Substitution -  Mathematical Operations -  Verbal Reasoning