Problema Solution
Ken makes a salad for 20 people. The salad dressing contains olive oil and 1/8 cup lemon juice per person. If there are 3 3/4 cups of dressing, how many cups of olive oil did Ken add per person?
Answer provided by our tutors
Assuming that the dressing is made of olive oil and lemon only we have:
3 3/4 - 20*(1/8) = 15/4 - 10/4 = 5/4 = 1 1/4 cups of olive oil for the whole salad for 20 people.
Per person is will be: (5/4):20 = 1/16 cup olive oil per person.