123 typists typeed 984 papers in 1/15 hour. The number of papers typed for minute by a average typist is	Choose the correct choice from the following answers
A) 7 B) 2 C) 4 D) 5 E) 9
Explanation:   Use unitary method:   {1}{15} hours, 123 typists can type 984 paper   123 typists can type e \frac{984}{4} = 246 papers   1 typist can typefrac{246}{123} =2 papers [ Hint{1}{15} hours = 4 minutes]   Answer: 2
<result>B</result>
123 typists typeed 984 papers in 1/15 hour. The number of papers typed for minute by a average typist is