Direction: Read the following series carefully and answer the following questions.

Certain number of persons work in three different departments namely HR, Finance and Marketing in such manner that not less than two and not more than four persons work in the same department. They also have different number of books.

M has 55 books. R and M does not work together. Only two other people work with Q. R works with X in Finance department. X has double the number of books Q has. X and Q do not work in same department. Total number of books the employees of the marketing department have is 209. Difference between the number of books of M and X is 5. P has 30 books. S who has 72 books works with W in Marketing department. The number of books N has is the LCM of 7 and 8. R and V have same number of books and they work in different departments. Q does not work with W but the total number of books they have is 61. U neither works with Q nor with S. N and M do not work together. The number of books W has is a perfect square but less than 50. T and Q do not work together and T does not work in marketing. U has 20 books more than R has. Sum of the number of books of T and U is 85. N works in marketing.