Question

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

Answer 1

Answer:

19

Step-by-step explanation:

Let x be the sum of 20 no.s

AVERAGE=x/20

for avg = 0; x must be equal to 0

thus at least 1  no. must be -ve so that sum comes = 0

there can be at the most 19 no.s greater than 0