Anita can clean a typical pool in 8 hours. chao can clean a typical pool in 6 hours. how long should it take anita and chao working together to clean a typical pool? show all your work. leave your final answer as an integer or reduced fraction.

Aprobability experiment is conducted in which the sample space of the experiment is s={7,8,9,10,11,12,13,14,15,16,17,18}, event f={7,8,9,10,11,12}, and event g={11,12,13,14}. assume that each outcome is equally likely. list the outcomes in f or g. find p(f or g) by counting the number of outcomes in f or g. determine p(f or g) using the general addition rule.