Question
Download Solution PDFएक व्यक्ति एक निश्चित समय में धारा के अनुकूल 8 किमी की दूरी तय कर सकता है और समान समय में धारा के प्रतिकूल 6 किमी की दूरी तय कर सकता है। यदि वह धारा के प्रतिकूल 24 किमी और धारा के अनुकूल समान दूरी
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
कुल दूरी = 24किमी
लिया गया समय = 7/4 घंटे
प्रयुक्त अवधारणा:
चाल = D/t
D= दूरी
t = समय
गणना:
माना व्यक्ति और धारा की चाल क्रमशः v और s है।
प्रश्न के अनुसार,
⇒ 8v - 8s = 6v + 6s
⇒ 2v = 14s
⇒ v : s = 7 : 1
माना कि चाल = 7x
धारा की चाल = x
इसलिए,
24/8x + 24/6x = 7/4
⇒ 3/x + 4/x = 7/4
⇒ 7/x = 7/4
⇒ x = 4
⇒ धारा की चाल = 4 किमी/घंटा
∴ धारा की चाल 4 किमी/घंटा है।
Last updated on Jul 22, 2025
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