#### A batsman scored the following number of runs in six innings:

36, 35, 50, 46, 60, 55

Calculate the mean runs scored by him in an inning.

**Solution:**

#### The enrolment in a school for six consecutive years was as follows:

1555, 1670, 1750, 2013, 2540, 2825

Find the mean enrolment of the school for this period.

**Solution:**