Q76
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
AnswerE.
None of these
Answer: Option D
Solution
Answer: Option D
Solution:
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)