The average of 10 numbers is 50. If one number is increased by 10, what will be the new average?
Practice Questions
1 question
Q1
The average of 10 numbers is 50. If one number is increased by 10, what will be the new average?
50
51
52
53
The total of the 10 numbers is 10 * 50 = 500. If one number is increased by 10, the new total becomes 500 + 10 = 510. The new average is 510 / 10 = 51.
Questions & Step-by-step Solutions
1 item
Q
Q: The average of 10 numbers is 50. If one number is increased by 10, what will be the new average?
Solution: The total of the 10 numbers is 10 * 50 = 500. If one number is increased by 10, the new total becomes 500 + 10 = 510. The new average is 510 / 10 = 51.
Steps: 5
Step 1: Understand that the average of 10 numbers is 50.
Step 2: Calculate the total of the 10 numbers by multiplying the average by the number of numbers: 10 * 50 = 500.
Step 3: Recognize that one number is increased by 10.
Step 4: Add the increase to the total: 500 + 10 = 510.
Step 5: Calculate the new average by dividing the new total by the number of numbers: 510 / 10 = 51.
