34Directions: Study the following information carefully and answer the…

34

Directions: Study the following information carefully and answer the questions that follow.

Ten different books - History, Science, Geography, Economics, Literature, Mathematics, Psychology, Philosophy, Biology, and Politics are kept in an almirah having four vertical stacks: Stack 1, Stack 2, Stack 3, and Stack 4. Stack 2 is to the east of Stack 1, Stack 3 is to the east of Stack 2, and Stack 4 is to the east of Stack 3. Each stack contains a different number of books. The number of books decreases from west to east, i.e., Stack 1 has more books than Stack 2, Stack 2 has more books than Stack 3, and Stack 3 has more books than Stack 4. At least one book is kept in each stack, and the top of all four stacks contains a book.

Science is kept immediately above History in the same stack. The geography book is kept two books above the Mathematics book in the same stack. The psychology book is kept to the east of the Politics book, which is not kept in Stack 3. Philosophy is kept at the top of Stack 3. History is kept two positions above Biology in the same stack. The literature book is not kept in Stack 4.

Which of the following pairs is in the same stack?