A man's speed with the current is 25 km/hr and the speed of the current is 2.5 km/hr. The man's speed against the current is?	Choose the correct choice from the following options.
A) 10  B) 80  C) 50  D) 30  E) 20

Rationale: "man ' s speed with the current = 25 km / hr = > speed of the man + speed of the current = 25 km / hr speed of the current is 2.5 km / hr hence , speed of the man = 25 - 2.5 = 22.5 km / hr man ' s speed against the current = speed of the man - speed of the current = 22.5 - 2.5 = 20 km / hr answer is e ."
Answer: E