MCQ Practice Mathematics 📖 The average of 10 numbers is -10. If the sum of 6 of them is 100, then what is the average of the other 4 numbers? A -100 B -50 C 100 D 50 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 PreviousThe average mark obtained by 15 students was 10 and the average mark obtained by 10 students was 15. What was the average mar... NextThe average of 20, 70 and x is 40. If the average of 20, 70, x and y is 50, then y =?
