Mathematics · Boats and Streams
एक नाव धारा के अनुकूल एक निश्चित दूरी 4 घंटे में तय करती है और धारा के प्रतिकूल 6 घंटे में वापस लौटती है। यदि शांत जल में नाव की गति 30 किमी/घंटा है, तो धारा की गति किमी/घंटा में क्या है?
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Mathematics · Boats and Streams
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6
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