Question 4

Five friends A, B, C, D, and E go on a trip together. Each of them likes at least one of the following three activities: Countryside Sightseeing, Shopping, and Adventure Sports such that:
No two friends like exactly the same set of activities.
A, B and E like exactly two activities each.
D likes only Countryside Sightseeing.
C likes more number of activities compared to D.
The number of friends who like both Shopping and Adventure Sports is ____

Correct Answer: 2

From the same setup as Q.2: D = {Co}; A, B, E cover {Co,Sh}, {Co,Ad}, {Sh,Ad}; C = {Co, Sh, Ad}.

Both Shopping AND Adventure are liked by:

Total = 2.

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