Q: A person completes a journey of 30 km at a speed of 6 km / h and a – McqOptions

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1.	Q: A person completes a journey of 30 km at a speed of 6 km / h and a journey of the remaining 40 km at a speed of 8 km / h. What is his average speed of travel for the entire journey?
A.	7 km/hour
B.	$$ {6{4\over11}}{km/hour}$$
C.	8 km/hour
D.	7.5 km/hour
Answer» B. $$ {6{4\over11}}{km/hour}$$

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