The average of 3 consecutive even numbers is 18, find the largest of these…
2024
The average of 3 consecutive even numbers is 18, find the largest of these numbers.
- A.
11
- B.
12
- C.
20
- D.
22
Attempted by 46 students.
Show answer & explanation
Correct answer: C
Step-by-Step Solution
Define the numbers: Let the three consecutive even numbers be x, x + 2, and x + 4.
Use the Average Formula: The average of a set of numbers is the sum of the numbers divided by the count.
Average = (x + (x + 2) + (x + 4)) / 3 = 18.
Solve for x:
(3x + 6) / 3 = 18
3x + 6 = 54
3x = 48
x = 16.
Find the largest number: The largest number is (x + 4).
16 + 4 = 20.