A man travels 600 km by train at 80 km/hr, 800 km by ship at 40 km/hr, 500 km by aeroplane at 400 km/hr and 100 km by car at 50 km/hr. The average speed for entire distance is

A man travels 600 km by train at 80 km/hr, 800 km by ship at 40 km/hr,

1.	A man travels 600 km by train at 80 km/hr, 800 km by ship at 40 km/hr, 500 km by aeroplane at 400 km/hr and 100 km by car at 50 km/hr. The average speed for entire distance is
A.	70 km/hr
B.	\[70\frac{5}{123}km/hr\]
C.	\[65\frac{5}{123}km/hr\]
D.	72 km/hr
Answer» D. 72 km/hr

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A man travels 600 km by train at 80 km/hr, 800 km by ship at 40 km/hr, 500 km by aeroplane at 400 km/hr and 100 km by car at 50 km/hr. The average speed for entire distance is

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