MCQ Practice Mathematics 📖 What is the next number of the series, 1, 4, 9, 16,...?/১, ৪, ৯, ১৬, .. ধারাটির পরবর্তী পদ কত? ক 18খ 21গ 23ঘ 25 Favorite Practice Add to Book Explanation & Answer Detailed explanations and answers are restricted. Unlock full access by logging in to your account. 🔒 Unlock the detailed explanation and answers Log In / Sign Up