Given:
The Venn diagram contains the number of members traveling to Germany, France, and Spain.
The objective is to find the number of students who travel only to Spain.
Step-by-step explanation:
By considering the Venn diagram, the numbers marked in the circle of Spain are,

But it is required to find out the numbers of students traveling only to Spain.
From the diagram, the individual number present inside the circle of Spain is 5/
Hence, the number of students traveling only to Spain is 5.