Study the given information carefully and answer the questions that follows:
(i) There are seven books one each on Psychology, Hindi, English, Sociology, Economics, Education and Accountancy, lying on a table one above the other.
(ii) Sociology is on the top of all the books.
(iii) Accountancy is immediately below Education which is immediately below Sociology.
(iv) Economics is immediately above Psychology but not in the middle.
(v) Hindi is immediately below Psychology.
If Sociology and English, Accountancy and Hindi, Education and Psychology interchange their positions, which book will be between Psychology and Sociology ?

Options

A. Accountancy
B. Psychology
C. Hindi
D. Economics

Answer

C

Explanation

According to the given information:
From (ii)
Sociology `to` on the top
From (iii)
Education `to` below sociology
Accountancy `to` below Education
From (iv)
Economics `to` above Psychology
From (v) Psychology `to` above Hindi
So, Middle book `to` English
So, arrangement of the books from top to bottom is as follows:
`({:("(Top)"),("Sociology"):})/(1)harr ("Education")/(2) harr("Accountancy")/(3)harr underset(("Middle"))(("English")/(4))harr("Economics")/(5)harr("Psychology")/(6)harr underset(("bottom"))(("Hindi")/(7))`
By inter changing the positions of the books according to the question, we get
`("English")/(1) harr("Psychology")/(2) harr("Hindi")/(3)harr("Sociology")/(4) harr("Economics")/(5) harr ("Education")/(6) harr ("Accountancy")/(7)`
Therefore, between Psyhology and Sociology `to` Hindi.