The average of 23 numbers is 77. If each number is divided by 4, then the average of new set of numbers is: Options :2018.2519.75none of these
Question
The average of 23 numbers is 77.
If each number is divided by 4, then the average of the new set of numbers is:
Options :
- 2018.25
- 19.75
- none of these
Solution
The average of a set of numbers is found by adding all the numbers in the set and then dividing by the count of numbers.
In this case, the average of 23 numbers is 77. This means that the total sum of all 23 numbers is 77 * 23 = 1771.
If each number is divided by 4, the total sum of the new set of numbers is 1771 / 4 = 442.75.
The average of the new set of numbers is found by dividing the total sum by the count of numbers, which is 442.75 / 23 = 19.25.
So, the average of the new set of numbers is 19.25.
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