Sufficient & Necessary Questions - - Question 29

All of the cargo ships of the Blue Star Line are over 100 meters long, and all of its passenger ships are under 100 m...

Shirnel March 12, 2020

Must be true questions

Hi Sam, So this question made me better understand "must be true" questions and what you and other facilitators have been saying that it follows from the passage. I keep on thinking that I need to make a fluid chain with all the premises and based on this question that isn't the case.

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SamA March 13, 2020

Hey @Shirnel,

Remember that you are never required to make a diagram. You can do so only when you feel that it will be helpful for you. I don't diagram frequently, but I will when the question gives me a lot of information that is tough to remember. I don't want to read the passage repeatedly. This is one of those cases. All of the premises don't connect, but there are sufficient and necessary principles in this stimulus. Here is what I wrote:

BSC - -> >100m
BSP - -> <100m
BS - - most - - before 1980
GS - -> after 1980 and <100m

What do we know about the S.S. Coral? It is a cargo ship. We also know that it is <100m, so it is not a Blue Star cargo ship. We can conclude that it is a Gold Star cargo ship, which was built after 1980.