9.
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The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero?
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Answer: Option D
Explanation:
Average of 20 numbers = 0.
Sum of 20 numbers (0 x 20) = 0.
It is quite possible that 19 of these numbers may be positive and if their sum is athen 20th number is (-a).
Title :
Averages Q9
Description : 9. The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero? A 0 B 1 C 10 D 1...
Rating :
5
