If ‘A’ stands for ‘÷’, ‘B’ stands for ‘×’, ‘C’ stands for ‘+’, and ‘D’ stands…
2026
If ‘A’ stands for ‘÷’, ‘B’ stands for ‘×’, ‘C’ stands for ‘+’, and ‘D’ stands for ‘−’, what value replaces the question mark in the equation below?
12 B 4 D 8 A 2 C 6 = ?
Answer: A. 50 — ConceptIn operator-substitution questions, first replace each code with the operation it denotes. Then evaluate the resulting numerical expression using the…
- A.
50
- B.
54
- C.
58
- D.
52
Attempted by 76 students.
Show answer & explanation
Correct answer: A
Concept
In operator-substitution questions, first replace each code with the operation it denotes. Then evaluate the resulting numerical expression using the standard order of operations: division and multiplication before addition and subtraction, proceeding left to right within the same priority.
Application
Substitute A → ÷, B → ×, C → +, and D → −. The expression becomes 12 × 4 − 8 ÷ 2 + 6.
Evaluate multiplication and division first: 12 × 4 = 48 and 8 ÷ 2 = 4.
Now perform subtraction and addition from left to right: 48 − 4 + 6 = 44 + 6 = 50.
Cross-check
Reverse-check the arithmetic: 50 − 6 + 4 = 48, and 48 = 12 × 4. The substituted evaluation is consistent.
Therefore, the required value is 50.