R Ram Sharma 🎓 Coach ⭐ 193.88K Points 📊 Reasoning Q. Complete the series..... 1, 5, 21, 57, 121, ? (A) 200 (B) 176 (C) 150 (D) 221 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (D) 221 You must be Logged in to update hint/solution 💬 Discussion 💬 Comment