Discussion Forum



1)

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

Answer:

Option D

Explanation:

Avergae of 20 numbers =0
Sum of 20 numbers = 0x20=0
it is quite possible that 19 of these numbers may be positive and if their sum is a,
then 20th number is -a