The following distributions create a rare 50/50 chance where two tanks match the information. Based on user observations, the following appear to both meet the requirements. There is a 50/50 chance that you will get it correct due to both of the tanks being equal. Take both, and hope your first one is right.
2 Tubes, Helium, Greater Than or Equal (#3 or #6)
3 Tubes, Helium, Less Than or Equal (#7 or #10)
Kudos for the info provided by Insert_Sex_Here @ Reddit and the original images on Imgur[imgur.com] by REACHGROUND.