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BukmhrUUNa. Sukm/hrb. 55km br9. A man covers a certain distance by car driving at 40km/hr and he returns back to the starting point riding on a scooterat 10km hr. Find his average speed for the whole journeya. 8km hrb. 16km hrc. 12km/hrd. None of these9. 10. A man covers a certain distance by car driving at 30km/hr and he returns back to the starting point riding on a scooterat 20km/hr. Find his average speed for the whole journey12222 2.24km/hr222 km Benb. 27km/hrc. 15km/hrd. 12km/hr129 On a tour a man travels at the rate of 64km and hour for the first 160km, then travels the next 160km at the rate of92​

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