The average of 23 numbers is 77. If each number is divided by 4, then the average of new set of numbers is:
Question
The average of 23 numbers is 77. If each number is divided by 4, then the average of new set of numbers is:
Solution
The average of a set of numbers is found by adding all the numbers together and then dividing by the number 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, then the total sum of the new set of numbers is 1771 / 4 = 442.75.
The average of the new set of numbers is then found by dividing this new total by the number of numbers, which is still 23.
So, the average of the new set of numbers is 442.75 / 23 = 19.25.
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