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Q)

A & B are two towns. A person covers the distance from A to B on cycle at 17kmph and returns to A by a boat running at a uniform speed of 8kmph. His average speed for the whole journey is


( A ) 12.5 km/h
( B ) 12.33 km/h
( C ) 10.75 km/h
( D ) 10.88 km/h

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