If you buy more than 100 books, you will get a 10% discount. The school will buy two kinds of books, A and B, in the bookstore. The number of books of type B is 3/5 of that of A. Type A is 1.5 yuan per copy, how much is Type A?
购书100本以上都打九折出售，学校到书店购买甲乙两种书，乙种书数目是甲的(3/5)，只有甲优惠，购买甲种书的总款是乙的2倍，乙种每本1.5元，甲种每本多少元？
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