In a class of 29 students, 16 students in 'Telugu', 9 students in 'Urdu', 6 students in 'Physics', 5 students in 'Telugu' and 'Urdu', 1 students in 'Urdu' and 'Physics', 5 students in 'Physics' and 'Telugu', 1 students in all the three subjects could get first class marks. How many of them got first class marks in only 'Telugu'? |