Reasoning - Logical Problems - Discussion

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Q.

Fact 1:Islands are surrounded by water.
Fact 2:Maui is an island.
Fact 3:Maui was formed by a volcano.
If the first three statements are facts, which of the following statements must also be a fact?
I:Maui is surrounded by water.
II:All islands are formed by volcanoes.
III:All volcanoes are on islands.                         
A. I only B. II only
C. II and III only D. None of the statements is a known fact.

Answer: Option A
Explaination:

 


Since Maui is an island and islands are surrounded by water,Maui must be surrounded by water. There is not enough information to support statements II and III.




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