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

Show Answer

Answer-D
Solution-

Solution(By Apex Team)

 
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)