csat-suneung 2008 Q25

csat-suneung · South-Korea · csat__math-science 4 marks Combinations & Selection Selection with Group/Category Constraints
A training center operates five different types of experience programs. Participants A and B each want to select 2 types from the 5 types of experience programs. Find the number of cases where A and B select exactly one type in common. [4 points] 
A training center operates five different types of experience programs. Participants A and B each want to select 2 types from the 5 types of experience programs. Find the number of cases where A and B select exactly one type in common. [4 points]
Paper Questions
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