When average age of 22 members are 0, how many members greater than 0?	Choose one.
A) 17  B) 21  C) 22  D) 24  E) 25
Average of 22 numbers = 0.   Sum of 22 numbers (0 x 22) = 0.   It is quite possible that 21 of these numbers may be positive and if their sum is a then 22nd number is (-a)   Answer is 21 (21)
<result>B</result>
When average age of 22 members are 0, how many members greater than 0?