Directions: Read the instructions carefully and answer the question below.

A coaching institute starts its classes from 9 am. There are seven slots, each of one hour. The first slot starts from 9 am, the second slot starts from 10 am and so on. There is a lunch break of one hour that starts from 1 pm. The last batch starts from 4 pm. Seven different subjects are taught in these slots namely, Mathematics, Chemistry, Biology, History, Economics, Physics, and Polity.

The History lecture starts three hours before the start of Mathematics lecture. Only one lecture is scheduled between History and the Mathematics lecture. The Polity lecture takes place in one of the slots after lunch but just before the Economic lecture. The chemistry lecture is scheduled immediately before the Physics lecture.