Question

Five of six numbers have a sum of 25. The average of all six numbers is 6. What is the sixth number?

a. 8
b. 10
c. 11
d. 12

Answer 1

It’s definitely 10 trust me 100%

Answer 2

9514 1404 393

Answer:

c. 11

Explanation:

The sum of all 6 numbers is ...

6 × average of 6 = total of 6

6 × 6 = 36 = total of 6

Then the remaining number is ...

total of 5 + sixth number = total of 6

25 + sixth number = 36

sixth number = 36 -25 = 11