IKMC 2027 - Grades 9-10 - Self-study SET 6 - Thematic Batch 3 Question 8

IKMC · IKMC 2027 - Grades 9-10 - Self-study SET 6 - Thematic Batch 3

Question 8

How many two-digit natural numbers n satisfy that n²+1 is divisible by 5?

1. 17
2. 18
3. 34
4. 36
5. None of the other four options is correct.