UMNPC contest

Problems

Name Solved / Tries Average tries Average tries to solve
A Take Two Stones 10/11 (91%) 1.10 1.10
B The Mailbox Manufacturers Problem 2/3 (67%) 1.00 1.00
C Crazy Driver 0/6 (0%) 2.00 --
D 4 thought 4/15 (27%) 2.50 2.75
E Postal Delivery 1/2 (50%) 2.00 2.00