If 31 L 31 J 5 = 186 and 47 J 2 L 43 = 137, then 52 L 64 J 3 = ?
2021
If 31 L 31 J 5 = 186 and 47 J 2 L 43 = 137, then 52 L 64 J 3 = ?
- A.
250
- B.
244
- C.
246
- D.
248
Attempted by 55 students.
Show answer & explanation
Correct answer: B
1. Decode the operators from the given equations:
- Eq 1: 31 L 31 J 5 = 186. If L = +, J = ×, then 31 + 31 × 5 = 31 + 155 = 186 (Correct).
- Eq 2: 47 J 2 L 43 = 137. If J = ×, L = +, then 47 × 2 + 43 = 94 + 43 = 137 (Correct).
2. Apply the operators to the final expression: 52 L 64 J 3.
- Replace with operators: 52 + 64 × 3.
3. Solve using BODMAS/PEMDAS (Multiplication before Addition):
- 64 × 3 = 192.
- 52 + 192 = 244.
Final Answer: Option B