Refer to the following number (Left) @ ∞ 2 + 7 # 9 & 5 > 1 3 5 µ 9 & 4 ? 3 5 < 6 8 ! + 2 3 @ $ 4 (Right)

📌 Solution (Step-by-step)

We need to find symbols (non-numeric characters) that satisfy BOTH conditions:

1. Immediately preceded by an even digit (0, 2, 4, 6, 8)
2. Immediately followed by a prime number (2, 3, 5, 7)

Checking the series (Left → Right)

Series:
@ ∞ 2 + 7 # 9 & 5 > 1 3 5 µ 9 & 4 ? 3 5 < 6 8 ! + 2 3 @ $ 4

✔️ Valid Cases:

1. ‘+’ (after 2 and before 7)
   • 2 = even ✅
   • 7 = prime ✅
     ✔️ Valid
2. ‘?’ (after 4 and before 3)
   • 4 = even ✅
   • 3 = prime ✅
     ✔️ Valid

❌ Other symbols do NOT satisfy both conditions.

Final Count:

✔️ Total such symbols = 2