Step-by-step reasoning process: First, we need to determine how much the entire meal costs before we can determine the tip. We perform 10 + 20 + 30 = 60 dollars worth of food. Now we need to find out how much the total tip to be paid is, by multiplying 60 * .2 = 12 dollars in tips. Since they want to split this evenly amongst three people, this works out to 12 / 3 = 4 dollars in tips per person.
The question and answer:
Question and answer: Julie, Letitia and Anton decided to have dinner together at a nearby restaurant. Julie orders $10 worth of food, Letitia orders $20 worth of food, and Anton orders $30 worth of food. How much should each pay in tips if they want to split a 20% tip for the whole meal evenly?
The answer is 4

Step-by-step reasoning process: There are 30 x 2 = 60 attendees from company B. Company C has 30 + 10 = 40 attendees. Company D has 40 - 5 = 35 registered attendees. So, the total attendees from company A, B, C, and D is 30 + 60 + 40 + 35 = 165. Therefore there are 185 - 165 = 20 attendees that are not from companies A, B, C, or D.
The question and answer:
Question and answer: A company is hosting a seminar. So far, 30 attendees from company A have been registered; company B has twice the number of attendees of company A; company C has 10 more attendees than company A; company D has 5 fewer attendees than company C. If a total of 185 attendees have registered, how many attendees who registered are not from either company A, B, C or D?
The answer is 20

Step-by-step reasoning process: The meals cost 16 + 14 = $30. So each paid 30 / 2 = $15. James left a tip of 30 * .2 = $6. So James paid 15 + 6 = $21.
The question and answer:
Question and answer:
James goes out to eat. He orders a steak and egg meal for $16. He is with his friend, who orders chicken fried steak for $14. His friend pays for half the bill and James pays the tip along with his half of the bill. They tip 20%. How much did James pay?
The answer is 21