alleryक्या n एक सम संख्या है? I: n + 1 विषम है। II: n, 3 का एक गुणज है।
Aकेवल II पर्याप्त है
Bदोनों मिलकर भी पर्याप्त नहीं हैं
Cकेवल I पर्याप्त है
Dदोनों एक साथ आवश्यक हैं
Answer & Solution
Correct answer: C. केवल I पर्याप्त है
यदि n + 1 विषम है तो n निश्चित रूप से सम होना चाहिए, जबकि 3 के गुणज विषम या सम दोनों हो सकते हैं।
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