Level:
Project ID:
1003034402
Accepted:
1
Clonable:
0
Easy:
0
In a class of \( 31 \) pupils, \( 18 \) pupils learn Italian, \( 16 \) pupils learn Spanish and \( 12 \) pupils learn Portuguese. Now, \( 7 \) pupils learn Italian and Spanish, \( 9 \) pupils learn Italian and Portuguese and \( 5 \) pupils learn Spanish and Portuguese. Finally, \( 3 \) students do not learn any of these three languages. How many pupils learn all these languages?
\( 3 \)
\( 5 \)
\( 2 \)
\( 1 \)