Q: A vehicle covered a distance with a constant speed. Had its speed been 6 km/hr more, the time elapsed in the journey would have been 4 hours less; had its speed been 6 km/hr less, the time elapsed in the journey would have been 6 hours more. The distance is/एक गाड़ी किसी दूरी को एक नियत चाल से तय करती है। यदि उसकी चाल 6 किमी./घण्टा अधिक होती, तो यात्रा में 4 घण्टे कम लगते; यदि उसकी चाल 6 किमी./घण्टा कम होती, तो यात्रा में 6 घण्टे अधिक लगते। दूरी है
A.
640 km/640 किमी.
B.
680 km/680 किमी.
C.
720 km/720 किमी.
D.
More than one of the above उपर्युक्त में से एक से अधिक
E.
None of the above/उपर्युक्त में से कोई नहीं
Correct Answer:
Option C -
Explanations:
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