The speed of rickshaw, car and scooter are in the ratio of 3 : 4 : 5. What is the ratio of the time taken by each one of them for covering the same distance? रिक्शा, कार और स्कूटर की चालों का अनुपात 3 : 4 : 5 है | समान दूरी को तय करने के लिए प्रत्येक के द्वारा लिए गए समय का अनुपात ज्ञात क्या है ?

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