If the average of five numbers is -10 and the sum of three of the numbers is 16, then what is th...

The average of five numbers is 35 . If sum of three of these numbers is 37 , what is the mean of the other two numbers ?

The average of 9 numbers is 18. If the average of first five numbers is 19 and the average of last 5 numbers is 17, find the 5th number.

The average of four numbers is 30. If the sum of first three numbers is 85, the fourth number is :

The arithmetic mean of five natural numbers is "6." If the mean of the five numbers is "7.5," then what is the mean of the remaining three numbers?

The average of 13 numbers is 48.5. The average of the first five numbers is 56.4 and that of the last nine numbers is 45.6. what is the 5^(th) number ?

The average of nine numbers is 50. The average of the first five numbers is 54 and that of the last three numbers is 52. Then, the sixth number is

The average of 13 numbers is 48.5. The average of the first five numbers is 56.4 and that of the last nine numbers is 45.6. What is the 5^(th) number?

In a set of three numbers, the average of the first two numbers is 7, the average of the last two numbers is 10, and the average of the first and the last numbers is 14. What is the average of the three numbers?