RE: Puzzle Contest #10 - First to get all the correct answers wins 5 SBD, all attempts will receive an upvote.

[helenapr]

First attempt :

Answer 1: D
Answer 2:19
Answer 3a: 69, 3b: 95, 3c: 75, 3d: 105
Answer 100m winner is Mike, 100m winning time is 2.5s, 50m winner is Jack, 50m winning time is 1.8s