95 students choose to attend one of three after school activities: football, tennis or running. There are 55 boys.
35 students choose football, of which 18 are girls.
30 students choose tennis.
14 girls choose running.
A student is selected at random.
What is the probability this student chose running?
Give your answer in its simplest form.

The mountain springs water company has two departments, purifying and bottling. the bottling department received 67,000 liters from the purifying department. during the period, the bottling department completed 65,000 liters, including 3,000 liters of work in process at the beginning of the period. the ending work in process was 5,000 liters. how many liters were started and completed during the period?