text: Brazil exam cheats caught using " pager " watches . RIO DE JANEIRO 1996-12-06 Brazilian students have been caught cheating in university entrance exams by using digital watches which gave the correct answers to test questions , a newspaper said on Friday . Rio de Janeiro state university officials discovered students were paying 15,000 reais ( $ 14,563 ) for the special watches , which operated like a telephone pager to receive correct answers , O Globo said . Seventy-seven students were found with the watches and disqualified , O Globo said .