SSC GD Constable previous year question
The distance from Chandigarh to Amritsar is covered in 4.5 hours at a speed of 50 km/hr. By how much should the speed (in km/hr) be increased to save 30 minutes of travel time?
Asked in SSC GD Constable 2025: 07 Feb 2025 Shift 2 · Quantitative Aptitude
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Correct answer: (D) 6.25
Distance = 50×4.5 = 225 km. New time = 4 hours; new speed = 225/4 = 56.25 km/hr. Increase = 56.25 − 50 = 6.25 km/hr.
हिंदी में प्रश्न
चंडीगढ़ से अमृतसर की दूरी 50 किमी/घंटा की गति से 4.5 घंटे में तय की जाती है। यात्रा समय में 30 मिनट की बचत के लिए गति (किमी/घंटा में) को कितना बढ़ाया जाना चाहिए?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (D) 6.25
दूरी = 50×4.5 = 225 किमी। नया समय = 4 घंटे; नई गति = 225/4 = 56.25 किमी/घंटा। वृद्धि = 56.25 − 50 = 6.25 किमी/घंटा।
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