Kindergarten bought some apples, if each child divided into 3 or 5, it would be just finished. The number of these apples is between 40 and 50. How many apples did the kindergarten buy?
幼儿园买来一些苹果，如果每个小朋友分3个或者分5个都正好分完．这些苹果的个数在40～50之间，幼儿园买了多少个苹果？
<gadget id="calculator">3 * 5</gadget>
<output>15</output>

<gadget id="calculator">15 * 3</gadget>
<output>45</output>

<result>45</result>