GENPACT
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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
Read Solution (Total 2)
-
- 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).
SO..Option (D)19... - 9 years agoHelpfull: Yes(4) No(1)
- Average of 20 numbers = 0
=>
Sum of 20 numbers
20
=
0
Sum of 20 numbers20=0
=> Sum of 20 numbers = 0
Hence at the most, there can be 19 positive numbers.
(Such that if the sum of these 19 positive numbers is x, 20th number will be -x) - 7 years agoHelpfull: Yes(0) No(0)
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