The average of three numbers is 20. If two numbers are 16 and 22, the third is?
The average of three numbers is 20. If two numbers are 16 and 22, the third is?
Explanation
To find the third number:
The average of three numbers is 20. Therefore, the sum of these three numbers is
20×3=60.
The sum of the two given numbers (16 and 22) is
16+22=38.
Subtract this sum from the total sum to find the third number:
60−38=22.
So, the third number is 22.