
The average of numbers is zero . Of them , at the most , how many may be greater than zero ?
A -
B -
C -
D -
Answer
497.1k+ views
Hint: As we know that the average equal to in question it equal to . So from here Sum of numbers is equal to , hence this is possible as sum of number is and rest number sum is then sum of number is in the question we have the maximum positive number possible .
Complete step-by-step answer:
In this question we have to find out at the most , how many may be greater than zero if the average of numbers is zero .
So average is equal to =
In this question it is given that the average of numbers is zero
=
Hence it mean that the Sum of the numbers =
So in the question it is given we have to find out the at most positive value mean maximum positive number possible .
As if the sum of positive numbers is equal to the and there is number whose value equal to the negative of the hence total sum is equal to ,
And the Average of the Numbers is equal to the .
So the maximum positive value possible is the and option D is the correct answer .
Note: The average formula has many applications both in real-life. Suppose if we have to find the average age of men or women in a group or average male height in India, then we calculate it by adding all the values and dividing it by the number of values.
Complete step-by-step answer:
In this question we have to find out at the most , how many may be greater than zero if the average of
So average is equal to =
In this question it is given that the average of
Hence it mean that the Sum of the numbers =
So in the question it is given we have to find out the at most positive value mean maximum positive number possible .
As if the sum of
And the Average of the Numbers is equal to the
So the maximum positive value possible is the
Note: The average formula has many applications both in real-life. Suppose if we have to find the average age of men or women in a group or average male height in India, then we calculate it by adding all the values and dividing it by the number of values.
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