A man's speed with the current is 16 km/hr and the speed of the current is 3.2 km/hr. The man's speed against the current is	Choose one:  A) 9  B) 9.6  C) 11  D) 12  E) 13

Rationale: "man ' s rate in still water = ( 16 - 3.2 ) km / hr = 12.8 km / hr . man ' s rate against the current = ( 12.8 - 3.2 ) km / hr = 9.6 km / hr . answer : b"
Answer: B