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Problem-Solving By Substitution
Interchange Of Signs And Numbers

In a certain code, 'A' means '+', 'B' means '-', 'C' means '×', and 'D' means '÷'. What is the result of 10 C 5 A 3 B 2 D 1?

A. 54
Posted in:  Problem-Solving By Substitution -  Mathematical Operations -  Verbal Reasoning

Using the symbols where '?' means subtraction, '†' means addition, '‡' means multiplication, and '§' means division, find the value of 10 † 5 ? 3 ‡ 2 § 1.

B. 14
Posted in:  Problem-Solving By Substitution -  Mathematical Operations -  Verbal Reasoning

If '+' means 'subtract', '-' means 'add', '×' means 'divide', and '÷' means 'multiply', what is the result of 9 + 3 - 2 × 4 ÷ 2?

B. 12
Posted in:  Problem-Solving By Substitution -  Mathematical Operations -  Verbal Reasoning

In a system where '*' represents multiplication, '/' represents division, '+' represents addition, and '-' represents subtraction, what is the outcome of 12 * 3 / 4 + 2 - 1?

B. 11
Posted in:  Problem-Solving By Substitution -  Mathematical Operations -  Verbal Reasoning

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

A. 20
Posted in:  Problem-Solving By Substitution -  Mathematical Operations -  Verbal Reasoning