From (1) and (5), the persons in Team 1 speak English. Chinese. Arabic and French. (Robert
speaks both Arabic and French).
From (1) and (5), the persons in Team 3 speak. English, Chinese and Dutch. (Quentin speaks
Dutch and English). Since each person speaks two languages and each team speaks exactly
four languages, we need to find one person for Team 3. who speaks one language among
English, Chinese and Dutch and a different language apart from these three.
Since, Paula and Sally together speak Basque, Chinese and English and they are together in
exactly two teams, they cannot be in Team 1. They must be in Teams 2 and 3.
Hence, from (5) and the above, Paula, Quentin and Sally, (Basque. Chinese. Dutch and
English) are in Team 3. Since there are three persons in Team 3. Teams 1 and 2 should also
have three persons each. Team 1 speaks, English, Chinese, Arabic and French. Robert (Arabic
and French) is one of the team members. Now, two more persons, who speak languages
among the above four are to be selected. It is possible only with Paula and Terence.
From (2) Basque and French are spoken by two teams. Hence, Team 2 speaks these two
languages. Paula and Sally are there in Team 2 (Basque, Chinese and English). We need to
find one more person, who speaks one of these three languages and French. It is possible
with only Terence.