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ETAG General Aptitude QUESTION #3761
Question 1
In a secondary school, 100 learners are spread across grades 1 to 10. Based on this information, which of the following statements is definitely true?
  • At least 10 learners belong to the same grade.✔️
  • Every grade has at least one learner.
  • Grade 10 has a maximum of 10 learners.
  • The combined enrollment of grades 1 through 5 is no less than 50.
Correct Answer Explanation
According to the Pigeonhole Principle, dividing 100 students into 10 groups guarantees at least one group has $\lceil 100/10 \rceil = 10$ students.