John studied for 22.5 hours over a period of 3.5 days. Hence, John studied 6.42 hours a day on average.
What is average?
The average is defined as the mean value of the given data which is equal to the ratio of the sum of the data value to the total number of units present in the data.
Average = the sum of the data value / the total number of units
We have been given John studied for 22.5 hours over a period of 3.5 days.
Let's consider the number of hours John studies be x hours.
We can find the number of hours he studies each day.
Average = the sum of the data value / the total number of units
= 22.5 / 3.5
= 6.42
Hence, John studied 6.42 hours a day on average.
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