Quiz 1
Yoda Soda is the intergalactic party drink that will have all your friends saying, ", good this is!"
You are throwing a party, and you need 5 liters of Yoda Soda for every 12 guests.
If you have 36 guests, how many liters of Yoda Soda do you need?

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?