Question 51
EasyOriginal questionA club's 16 members belong to four houses with 3, 5, 2 and 6 members. Two members are related if they belong to the same house.
Which of these describes the same-house relation?
Show the answer and explanation
CorrectNot quiteAnswer D
Correct answer: D
Explanation
Everyone is in their own house; sharing a house works both ways.
If A shares with B and B with C, all three are in one house: an equivalence.
Worth noting
'Same house' is 'equal value of something', which is always an equivalence.
- Concept
- Recognising an equivalence relation
- Typical timeTypical
- 90 s
- Your timeYours
- —
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