एक यात्रा का एक भाग 90 किमी/घंटा की गति से 37.5 मिनट में और शेष भाग 80 किमी/घंटा की गति से 14 मिनट में तय किया जाता है। यात्रा की कुल दूरी (किमी में) कितनी है?

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SSC CGL 2023 Tier-I Official Paper (Held On: 17 Jul 2023 Shift 4)
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  1. \(76\frac{5}{12}\)
  2. \(62\frac{11}{12}\)
  3. \(78\frac{5}{12}\)
  4. \(74\frac{11}{12}\)

Answer (Detailed Solution Below)

Option 4 : \(74\frac{11}{12}\)
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Detailed Solution

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दिया गया:

यात्रा का पहला भाग पूरा करने में लगा समय = 37.5 मिनट

यात्रा के पहले भाग में एक व्यक्ति की गति = 90 किमी/घंटा

यात्रा का शेष भाग पूरा करने में लगा समय = 14 मिनट

यात्रा के शेष भाग के लिए एक व्यक्ति की गति = 80 किमी/घंटा

प्रयुक्त सूत्र:

दूरी = गति × समय

गणना:

पहले भाग में एक व्यक्ति द्वारा तय की गई दूरी = (90 × 37.5)/60 = 225/4 = 56\(\frac{1}{4}\) किमी

दूसरे भाग में एक व्यक्ति द्वारा तय की गई दूरी = (80 × 14)/60 = 56/3 = 18\(\frac{2}{3}\) किमी

व्यक्ति द्वारा तय की गई कुल दूरी = 56\(\frac{1}{4}\) + 18\(\frac{2}{3}\) 

⇒ (56 + 18) + \(\frac{1}{4}\) +  \(\frac{2}{3}\) = 74 + \(\frac{11}{12}\) = 74\(\frac{11}{12}\) किमी

∴ सही उत्तर 74\(\frac{11}{12}\) किमी है।

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