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Prateek Asked :

13-01-2022 Average

Q. 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. 19


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Dapzoi Verified
Commented on 2022-01-15 12:24:02 (IST)
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 a then 20th number is (-a).