Anna and her friends made dinner reservations at two local restaurants on two different days. While the first restaurant sat all the friends in groups of 4, the second restaurant sat all the friends in groups of 20. What is the smallest number of people that could be in the group?

Florence tutors students in groups of 18. Meanwhile, Harold tutors students in groups of 13. While discussing their work, the tutors realize that they both work with the same total number of students. What is the smallest number of students each can have?

At a dinner party with an equal number of adults and children, adults are seated at tables of exactly 15 and children are seated at tables of exactly 17. What is the minimum number of children attending?

Bobby tutors students in groups of 8. Meanwhile, Polly tutors students in groups of 12. While discussing their work, the tutors realize that they both work with the same total number of students. What is the smallest number of students each can have?

At a school event, adults are seated in groups of exactly 2 and children are seated in groups of exactly 12. If there are the same number of adults as children, what is the minimum number of adults attending?

A restaurant is hosting a large party. They have 23 tables seating 14 people each and 21 tables seating 16 people each. How many people are seated at the party?