Sara is 7th from the top and 9th from the bottom in a class. How many students are in the class?
Correct answer: B. 15 students
- A. 14 students
- B. 15 students
- C. 16 students
- D. 17 students
Explanation
Count Sara only once when combining the two ranks: 7 + 9 - 1 = 15. Therefore, there are 15 students in the class.
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Logical problems present several conditions about people, objects, events or choices and require their possible arrangements to be tested. They cover constraint-based reasoning, rankings, matching, grouping, scheduling and elimination, with attention to the difference between a complete solution and a possibility that merely satisfies one condition.
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