if the list price of a book is reduced by Rs.5,then a person can buy 5 more books for Rs.300. The original cost of the book is
Choose one
A) Rs.15  B) Rs.20  C) Rs.25  D) Rs.30  E) Rs.35
300/(x-5)-300/x=5   x=20   ANSWER:Rs.20
<result>B</result>
if the list price of a book is reduced by Rs.5,then a person can buy 5 more books for Rs.300. The original cost of the book is