The following questions are accompanied by three statements (A), (B), and (C). You have to determine which statement(s) is/are sufficient/necessary to answer the questions. A train crosses another train in 10 sec. Find out the lengths of the trains. A. Ratio between the lengths of the second and first train is 4: 5. B. Ratio between the speed of first and second trains is 1: 2. C. The speed of first train is 36 km/hr निम्नलिखित प्रश्न तीन कथन (A), (B), और (C) के साथ हैं। आपको यह निर्धारित करना होगा कि प्रश्नों का उत्तर देने के लिए कौन सा कथन पर्याप्त / आवश्यक है। एक ट्रेन 10 सेकंड में एक अन्य ट्रेन पार करती है। ट्रेनों की लंबाई ज्ञात कीजिये । A. दूसरी और पहली ट्रेन की लंबाई के बीच अनुपात 4: 5 है । B. पहली और दूसरी ट्रेनों की गति के बीच अनुपात 1: 2 है । C. पहली ट्रेन की गति 36 किमी / घंटा है ।
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