For each of the following questions two statements are given. Use the data of those statements and then determine which of the following statements is necessary to answer the question. निम्नलिखित प्रत्येक प्रश्न के लिए दो कथन दिए गए हैं। उन कथनों के डेटा का उपयोग करें और फिर निर्धारित करें कि प्रश्न का उत्तर देने के लिए निम्नलिखित कथनों में से कौन सा आवश्यक है। What is the present age of A? A की वर्तमान आयु क्या है? Statement I: The ratio of the present age of A and B is 2:3. After 10 years, the ratio of the ages of B and C is 2:1. कथन I: A और B की वर्तमान आयु का अनुपात 2: 3 है। 10 वर्षों के बाद, B और C की आयु का अनुपात 2: 1 है। Statement II: 5 years ago the average age of A, B, C is 11 years, and after 3 years, the average age of B and C is 18 years. कथन II: 5 वर्ष पहले A, B, C की औसत आयु 11 वर्ष है, और 3 वर्ष के बाद, B और C की औसत आयु 18 वर्ष है।
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