In a triangle, three interior angles A, B, C are not equal to each other, B is (3/2) times of A, C is 2 times of A, then what is the degree of A.
在一个三角形中，三个内角A，B，C互不相等，B是A的(3/2)倍，C是A的2倍，那么A是多少度．
<result>40</result>