popup14 problemsession 3

Problems

Name Solved / Tries Average tries Average tries to solve
A Jez 0/5 (0%) 5.00 --
B Pseudoprime numbers 13/49 (27%) 3.27 3.15
C Semafori 15/17 (88%) 1.13 1.13
D SETI 2/2 (100%) 1.00 1.00
E Sylvester Construction 10/15 (67%) 1.36 1.30
F Tautology 6/11 (55%) 1.57 1.50
G Vase Collection 4/24 (17%) 3.43 2.50