<h3><u>Question:</u></h3>
Each month for 9 months, Jordan buys 2 sports books. How many more sports books does he need to buy before has bought 25 sports books?
<h3><u>Answer:</u></h3>
Jordan needs to but 7 more sports book
<h3><u>Solution:</u></h3>
From given,
Each month for 9 months, Jordan buys 2 sports books
Thus for one month he buys 2 sports books
<em><u>For, 9 months, number of books is bought is given as:</u></em>

Thus, in 9 months he has bought 18 books
He needs to buy 25 sports books
Therefore, remaining books to be bought = 25 - 18 = 7
Thus he needs to buy 7 more books to have 25 of them