Mathematics · Number System
Let a and b be two positive numbers such that a and b - a are co-primes, and b and b + a are co-primes respectively. Which of the following statements is always true?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1a and b are co-prime✓
- 2a must be prime
- 3b must be prime
- 4a and b are not co-prime
Correct answer
a and b are co-prime
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