There is not enough detail in this question but with all the detail you gave, the awnser would be that they would finish at the same time.
You have to know how long it takes them both to solve the puzzles. ;)
Answer:
20 ........................
it's 1/3
Step-by-step explanation:
5/6+(-1/2)
5/6-1/2
LCM= 6
(5-3)/6
2/6
1/3
its c and its right
