By selling 15 pencils for a rupee a man loses 20%. How many for a rupee should he sell in order to gain 20%?
Answers.
A) 8  B) 7  C) 6  D) 4  E) 10

Rationale: "80 % - - - 15 120 % - - - ? 80 / 120 * 15 = 10 answer : e"
Answer: E