चाल, समय तथा दुरी -2 (Speed, Time and Distance)

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चाल, समय तथा दुरी -2 (Speed, time and Distance)

1. रमेश 30 km/hr की चाल से किसी स्थान तक जाता है, और 20 km/hr की चाल से वापिस लौटता है, पूरी यात्रा में उसे 5 घंटे लगते हैं, तो बताइए –
A. दुरी कितनी है?
B. कुल कितनी दुरी तय की गई?

2. एक सायकल सवार किसी निश्चित दुरी को 20 km/hr की चाल से तय करता है, और 10 km/hr की चाल से वापिस लौटता है, पूरी यात्रा में उसे 6 घंटे लगते हैं, तो बताइए वह दुरी कितनी है?

3. एक कार किसी निश्चित दुरी में से आधी को 40 km/hr की चाल से और शेष को 60 km/hr की चाल से तय करती है, यदि पूरी यात्रा में उसे 10 घंटे लगे हो तो बताइए वह निश्चित दुरी कितनी है?

4. रवि किसी दुरी में से 2/3 भाग को 4 km/hr की चाल से और शेष को 5 km/hr की चाल से तय करता है, यदि पूरी यात्रा में 42min का समय लगा तो बताइए उसके द्वारा तय की गई दुरी कितनी है?

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