The average of six numbers is 4. The average of two of them is 3.5, while the average of the other two is 3.75. What is the average of the remaining two numbers?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 4.75.
Total sum of six numbers = 6 × 4 = 24
Sum of the first two numbers = 2 × 3.5 = 7
Sum of the next two numbers = 2 × 3.75 = 7.5
Sum of remaining two numbers = 24 - (7 + 7.5) = 9.5
Average of remaining two numbers = 9.5/2 = 4.75