What comes next ? – B25, Y2, C24, X3,?

Explanation:

Given series:
B25, Y2, C24, X3, ?

📌 Observe the pattern:

🔤 Letters:

• B → Y → C → X → ?
  👉 Pattern:
• B → C (+1)
• Y → X (−1)

So letters follow:
👉 Forward, Backward, Forward, Backward

• C → D (+1)

🔢 Numbers:

• 25 → 2 → 24 → 3 → ?

👉 Pattern:

• 25 → 24 (−1)
• 2 → 3 (+1)

So numbers follow:
👉 −1, +1, −1, +1

• 24 → 23

📌 Combine both:

👉 Letter = D
👉 Number = 23

Final Answer:

D23