A student worked V hours on Monday W hours on Tuesday X hours on Wednesday Y hours on Thursday and Z hours on Friday. What is the average (arithmetic mean)

(1/5)(V+W+X+Y+Z)

To find the average (arithmetic mean) of the hours worked by the student, you need to add up all the hours worked and then divide the sum by the total number of days.

Therefore, to get the sum of hours worked, you would add V hours (Monday) + W hours (Tuesday) + X hours (Wednesday) + Y hours (Thursday) + Z hours (Friday).

Once you have the sum of all the hours worked, you can find the average by dividing that sum by 5 (since there are 5 days in a school week).

So the formula for finding the average is:

Average = (V + W + X + Y + Z) / 5