Children's books cover the most shelf space in the store.
Mysteries = 3/10
Travel = 25%
children = 7/20
Based on the problem, the total number of shelves in the bookstore is 20.
Therefore:
Mysteries = 3 / 10 * 20 = 6 shelves
Travel = 25% * 20 = 5 shelves
Children = 7/20 * 20 = 7 shelves
Total shelves occupied by the three types of stories is 18.
Children's books cover the most shelf space in the store.
