The average of 20 numbers is zero. Of them, How many of them may be greater than zero, at the most?	Select the correct option:
A) 3
B) 1
C) 0
D) 19
E) 20
Average of 20 numbers = 0   Sum of 20 numbers / 20=0   =&gt; Sum of 20 numbers = 0   Hence at the most, there can be 19 positive numbers.   (Such that if the sum of these 19 positive numbers is x, 20th number will be -X)   ANSWER:0
<result>C</result>
The average of 20 numbers is zero. Of them, How many of them may be greater than zero, at the most?