Question : The average of 4 consecutive numbers is 64.5. What is the largest number among these numbers?
Option 1: 62
Option 2: 60
Option 3: 67
Option 4: 66
Correct Answer: 66
Solution :
Given: The average of 4 consecutive numbers is 64.5.
Let the 4 numbers be
The sum of the 4 numbers
Use the formula,
According to the question,
⇒
⇒
⇒
⇒
The largest number among these numbers = 63 + 3 = 66
Hence, the correct answer is 66.