Bibi and Tina Cow Farm

We thought it's time for a new challenge with your two best friends, Bibi and Tina. They are very skilled at farm work, but now they want to challenge and teach you too. The girls were left alone at the farm, so now it's the appropriate time to help and learn at the same time. The first thing the girls were asigned to do today, is to milk the cows and extract a certain number of milk liters, and with your help, Bibi and Tina will finish their work before their parents come back at the farm. You have to put the machines on the cows odders and pres the numbers below them while checking how many milk have you extracted. Be careful and fast, because the machines have to be applied again and again, until your time is up.