The average of 7, 13, 17, x, and 29 is 18. What is the value of x?
The average of 7, 13, 17, x, and 29 is 18. What is the value of x?
Explanation
Given:
Average = 18
Numbers: 7, 13, 17, x, 29
Average = (Sum of numbers) / (Total count)
18 = (7 + 13 + 17 + x + 29) / 5
Multiply both sides by 5:
90 = 66 + x
x = 90 - 66
x = 24