IKMC 2027 - Grades 1-2 - Self-study SET 9 - Thematic Batch 3 Question 8

The Star Hotel has 3 rooms with 1 single bed each, 6 rooms with 2 single beds each and 4 rooms with 3 single beds each. Each single bed holds 1 person. What is the greatest number of people who can stay there in one night?