Directions: Read the following information carefully and answer the questions.

Eight persons, V, U, M, R, S, X, N and T join a particular company on either the 13^th or on the 21^st of four different months, February, July, September and December. All the information given are not necessarily in the same order.

S and V join the company in the same month, with S joining before V. T joins the company immediately before U. N is the last person to join the company. R joins the company on the 21^st of February. V joins the company in the month of July. M joins the company on the first available date of the month containing 30 days. U joins the company on the 13^th of December.