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A man goes from Mysore to Bangalore at a...

A man goes from Mysore to Bangalore at a uniform speed of 40 km/h and comes back to Mysore at a uniform speed of 60 km/h. His average speed for the whole journey is (A) 48 km/h (B) 50 km/h (C) 54 km/h (D) 55 km/h

A

C

B

D

C

B

D

A

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