The average of eight numbers is 12. If the number 20 is replaced by 8, what is the new average?
Q1. The average of eight numbers is 12. If the number 20 is replaced by 8, what is the new average?
Answer: 10.5
Explanation: The original total is 96. Replacing 20 with 8 lowers the total by 12 to 84. The new average is 84 divided by 8, which is 10.5.