Question 139

The average of 26 numbers is zero. Of them, how many may be greater than zero, at the most?

Solution

Given that the average of 26 numbers is zero.
Then, Sum of 26 numbers = 0
In that, If sum of 25 numbers is 25a, then the 26th number should be -25a.
Hence, Maximum 25 numbers can be greater than zero.

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SSC CPO 16th-March-2019-Shift-3

The average of 26 numbers is zero. Of them, how many may be greater than zero, at the most?

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