Read the following information carefully and answer the question given below. Arun, Bala, Praveen, Sonu, Vijay, Deepak and Karthi are seven students of a school. They study in class P, Q and R with at least two in anyone class. Each of them has different choice of colour from blue, red, green, yellow, black, white and brown, not necessarily in the same order. Bala studies in class Q with only Deepak who likes red colour. Arun studies in class R and does not like either blue or green. Vijay does not study in class R and likes yellow colour. Praveen and Sonu study in the same class but not with Arun. None of those who study in class P likes white. The one who likes black studies in class Q. Sonu likes brown colour. Praveen does not like blue colour. Which colour does Praveen like?