Q20. A Car travelling at 60km hr left Dehradun at 3 pm. One hour later another car travelling at 80 km/hr started
from the same point and on the same road to overtake the first car. How long must the second car travel to do so?
एक कार देहरादून से 60 किमी / घटा की चाल से 3 बजे चलती है एक घंटे बाद दुसरी कार उसी जगह से 80 किमी/घटा की चाल से दौड़कर
पहली कार को ओवर टेक करती है। कितने समय तक दूसरी कार ने यात्रा की।
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Step-by-step explanation:
Hence, the second car travelled in 3 hours to overtake the 1st car . → Therefore, time taken by second car to overtake the first car = 80x = 80 × 3 = 240 km.
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