Exam-style question
Try this first
The objects in the ordered set S = {"red", "blue", "green", "yellow"} are written from left to right. What is the ordinal position of "green"?.
- A.1st
- B.2nd
- C.3rd
- D.4th
Model answer
What a good answer should say
- The ordinal position of "green" is 3rd.
Explanation
Why this works
Ordinal numbers describe the numerical positions of objects in an order. "Green" is the third object in the set.
Common mistake
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