Mathematics · Number System
It is given that 5 does not divide n - 1, n, and n + 1, where n is a positive integer. Which one of the following is correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 15 divides (n2 - n)
- 25 divides (n2 + n)
- 35 divides (n2 - 1)
- 45 divides (n2 + 1)✓
Correct answer
5 divides (n2 + 1)
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