certain bookstore has a preferential policy that if you buy more than 40 books of the same kind, you will be paid 80% of the book price. A customer buys two kinds of books, A and B, and only book A gets a discount. The price for buying a book of type A is three times the amount paid for the book of type B. The number of books of type B is the number of books of type A. Number (2/5). Type B book is 40 yuan per volume, how much is the price of each volume of type A book before the discount?
某书店有一项优惠规定，凡购买同一种书40本以上，按书价80%付款．某顾客买A、B两种书，只有A种书得到优惠，这次买A种书所付钱数是买B种书所付钱数的3倍，B种书的册数是A种书册数的(2/5)．B种书是每册40元，问A种书优惠前每册定价是多少元？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">48 / (4/5)</gadget>
<output>60</output>

<result>60</result>