Harry worked the following hours in a week. what are the average hours worked for these five days?   monday8  tuesday10  wednesday7  thursday9  friday6

average hours worked = 8 hours / day

Explanation:
To get the average, we divide the total number of hours worked by the total number of days.
i.e.
average hours worked = total number of hours / total number of days

From the givens we have:
Total number of hours = 8 + 10 + 7 + 9 + 6 = 40 hours
Total number of days = 5 days

Substitute in the above rule to get the average as follows:
average hours worked = 40 / 5 = 8 hours / day

Hope this helps :)

It might be a glitch in the system, but good job with all those points

The third and fourth box.