he average of 10 numbers is zero. Of them, at the most, how many may be greater than zero?	Choose the correct choice from the following answers:
A) 0 B) 1 C) 10 D) 9 E) 8
Average of 10 numbers = 0.   Sum of 10 numbers (0 x 10) = 0.   It is quite possible that 9 of these numbers may be positive and if their sum is a the 10th number is (-a).   Answer: Option 9
<result>D</result>
he average of 10 numbers is zero. Of them, at the most, how many may be greater than zero?