In a pile of 10 books, there are 3 of History, 3 of Hindi, 2 of Mathematics and 2 of English.
Taking from above, there is an English books between a History and Mathematics book, a History book between a Mathematics and an English book, a Hindi book between an English and A Mathematics book, a Mathematics book between two Hindi books and two Hindi books between a Mathematics and a History book.
Book of which subject is at the sixth position from the top ?