MCQ Practice Mathematics 📖 If the average of four numbers k, 2k + 3, 3k - 5, and 5k + 1 is 63. What is the value of k? A 11 B 15.75 C 22 D 23 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 PreviousIf the average of 16, 20 and n is between 18 and 21 inclusive, what is the greatest possible value of n? NextIf the sum of (3, 7 and x) is 18, then the average of (3, 7 and x) is--