There are seven professors A, B, C, D, E, F and G teaching seven subjects History, Geography, Physics, Chemistry, Maths, Biology and English from Monday to Friday at Gaya College. Each professor teaches a different subject and not more than two subjects are taught on any one of the days. (i) Chemistry is taught by professor B on Tuesday. (ii) Professor D teaches on Friday but neither Geography nor Physics. (iii) Professor F teaches History but neither on Thursday nor on Friday. (iv) Professor A teaches English on the day on which History is taught. (v) Professor C teaches Maths on Monday. (vi) Geography and Chemistry are taught on the same day. (vii) Professor G teaches on Thursday.
