Answer:
The value of the excluded number is 35.
Explanation:
Write out six letters to represent these six numbers;
a + b + c + d + e + f
---------------------------- = 30. Note that if "f" is excluded,
6
a + b + c + d + e
---------------------------- = 29.
5.
Thus, a + b + c + d + e = (5)(29) = 145. Replacing a + b + c + d + e in the first equation by 145, we get:
145 + f
----------- = 30, which means that 145 + f = 180. Solving for f, f = 35.
6
The value of the excluded number is 35.