The average of 20 numbers is zero of them at the most how, many may be greater than zero? how it comes 19?

actually it is asking at most how many means maximum possibility of no. of students got positive marks. here total no. are 20, so most how 19 are quite possible and due to 20th the...

Hello Pooja, Greetings!! I will try to simplify your query hope you will satisfy with this Suppose there is a series of 20 numbers 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,...

The avg of 20 numbers =0 therefore sum of 20 numbers =20*0=0 it is quite possible that 19 of these numbers may be positive .