Study the following information carefully and answer the question given below: Eight persons P, Q, R, S, T, U, V, and W were born on the 21st of eight...
Question
Study the following information carefully and answer the question given below: Eight persons P, Q, R, S, T, U, V, and W were born on the 21st of eight different months — January, February, March, April, May, June, July, and August of the same year (not necessarily in the same order). - Four persons were born between R and W, who was born immediately after S. - R and T were born in adjacent months that both have 31 days. - P was born three months before V. - U was born neither in May nor in June.
Question: How many persons were born between Q and S?