PIMSO 2025 - Mathematics - Primary 6 - National Round Question 26

In a Grade 6 class, the lowest score in a Mathematics test is 67 but the highest is 89. If at least five students have the same scores, what is the minimum number of students in the said class?

Original choices: A. 28; B. 88; C. 92; D. 93.

Editorial note: Explain the source difficulty; no automatic answer is assigned.