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Problem-Solving By Substitution
Interchange Of Signs And Numbers

If '?' represents equal to, '?' represents not equal to, '>' represents greater than, and '<' represents less than, which of the following statements is correct? 7 ? 7 and 5 < 8?

A. BOTH ARE TRUE
Posted in:  Problem-Solving By Substitution -  Mathematical Operations -  Verbal Reasoning

In a certain code, 'A' means 2, 'B' means 3, 'C' means 5, and 'D' means 7. What is the value of A + B × C - D?

C. 10
Posted in:  Problem-Solving By Substitution -  Mathematical Operations -  Verbal Reasoning

If '?' represents multiplication, '?' represents division, '?' represents addition, and '?' represents subtraction, what is the value of 9 ? 3 ? 2 ? 6?

A. 30
Posted in:  Problem-Solving By Substitution -  Mathematical Operations -  Verbal Reasoning

Using the symbols where '?' means addition, '?' means subtraction, '×' means multiplication, and '÷' means division, calculate 10 ? 5 ? 3 × 2 ÷ 1.

B. 25
Posted in:  Problem-Solving By Substitution -  Mathematical Operations -  Verbal Reasoning

If '>' represents greater than, '<' represents less than, '=' represents equal to, and '?' represents not equal to, which of the following statements is true? 5 < 8 and 8 > 3.

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