A man's speed with the current is 15 km/hr and the speed of the current is 2.8 km/hr. The man's speed against the current is? Pick one:	A) 9.4	B) 20	C) 50	D) 30	E) 40

Rationale: "man ' s speed with the current = 15 km / hr = > speed of the man + speed of the current = 15 km / hr speed of the current is 2.8 km / hr hence , speed of the man = 15 - 2.8 = 12.2 km / hr man ' s speed against the current = speed of the man - speed of the current = 12.2 - 2.8 = 9.4 km / hr answer is a ."
Answer: A