Question

The average of 20 numbers is 0. among them at least how many of them can be greater than 0.

a. 19.
b.10
c.0
d.1​

Answer 1

The correct option is A.

Explanation:

The correct option is A.

According to the given statement:

Average of 20 numbers= 0.

So we have avg = sum/20.

That implies sum = 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)....