आनंद 5 घंटे के पहले अंतराल में 50 किमी/घंटा की गति से एक निश्चित दूरी तय करता है। दूसरे अंतराल में, उसने गति 20% बढ़ा दी जिसके कारण उसने पहले अंतराल की तुलना में 20% अधिक दूरी तय की। उसने तीसरे अंतराल को पहले दो अंतराल की औसत गति से तय किया और दूसरे अंतराल की दूरी की तुलना में 10% अतिरिक्त दूरी तय की। तीनों अंतरालों को पूरा करने में उसे कुल कितना समय (घंटों में) लगा?

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SSC CGL 2023 Tier-I Official Paper (Held On: 21 Jul 2023 Shift 1)
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  4. 14

Answer (Detailed Solution Below)

Option 1 : 16
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दिया गया है

समय = 5 घंटे 

गति = 50 किमी/घंटा

प्रयुक्त सूत्र

गति = दूरी/समय

गणना

दूरी = 50 × 5 = 250 किमी

दूसरे अंतराल में:

दूरी = 250 + 250 × 120/100 = 300 किमी 

गति = 50 + 50 × 120/100 = 60 किमी/घंटा

समय = 300/60 = 5 घंटे 

तीसरे अंतराल में:

दूरी = 300 + 300 × 110/100 = 330 किमी

गति = (60 + 50)/2 = 55 किमी/घंटा

समय = 330/55 = 6 घंटे 

कुल समय = 5 + 5 + 6 = 16 घंटे 

उत्तर 16 घंटे है। 

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