The average of 20 numbers is zero. Of them, at the most how many may be greater than zero?

The average of 26 numbers is zero. Of them, how many may be greater than zero, at the most? 26 संख्याओं का औसत शून्य है | अधिक से अधिक कितनी शून्य से बड़ी हो सकती हैं ?

The average of 27 numbers is zero. Out of them, how many may be greater than zero, at the most? 27 संख्याओं का औसत 0 है | इनमें से, अधिक से अधिक कितनी संख्याएँ शून्य से अधिक सकती हैं ?

The average of 39 numbers is zero. Out of them, how many may be greater than zero, at the most?

The average of 39 numbers is zero. Out of then, how many may be greater than zero, at the most?

The average of 25 number is zero. At most, how many of these numbers can be greater than zero? 25 संख्याओं का औसत शून्य है | इनमें से अधिक से अधिक कितनी संख्याएँ शून्य से अधिक हो सकती हैं ?

The average of 1088 real numbers is zero. At most how many of them can be negative? 1088 वास्तविक संख्याओं का औसत शून्य है | उनमें अधिक से अधिक कितनी संख्याएँ ऋणात्मक हो सकती हैं?

If the origin of coordinate system lies at the centre of mass, the sum of the moments of the masses of particles of the system about the centre of mass (A) may be greater than zero (B) may be less than zero (C) may be equal to zero (D) is always zero

Which of the following has DeltaS^@ greater than zero?