Problem C. 1297. (May 2015)
C. 1297. The main attractions of the show in a circus are the performances of a lion and an elephant. However, these performances cannot be accomplished if the animals are not in the mood. The lion appears on stage in \(\displaystyle \frac{4}{5}\) of the shows, and the elephant only appears in \(\displaystyle \frac{3}{4}\) of the shows. The circus is so lucky as to be able to show at least one of the animals in \(\displaystyle 99\%\) of the shows. What is the probability of both animals appearing in a show?
(5 pont)
Deadline expired on 10 June 2015.
Statistics:
92 students sent a solution.  
5 points:  66 students. 
4 points:  17 students. 
1 point:  4 students. 
0 point:  5 students. 
