Răspuns :
49 < a < 54
a = ( 50, 51, 52, 53)→ valorile lui a
49 < 50 < 54;
49 < 51 < 54;
49 < 52 < 54;
49 < 53 < 54.
a = ( 50, 51, 52, 53)→ valorile lui a
49 < 50 < 54;
49 < 51 < 54;
49 < 52 < 54;
49 < 53 < 54.