Suppose you begin reading a book on page h and end on page k. If you read ... ...

Suppose you begin reading a book on page h and end on page k. If you read each page completely and the pages are numbered and read consecutively, then how many pages have you read?


(A)

h + k


(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Nova Math - Problem Set A: Substitution