Four students went to visit the museum. They paid a total of 52 yuan for the ticket, and each of them spent 4 yuan for the bus. How much did each student spend on average?
四名同学去博物馆参观，共付门票52元，每人乘车花费4元，平均每个同学花了多少元？
<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">16 + 52</gadget>
<output>68</output>

<gadget id="calculator">68 / 4</gadget>
<output>17</output>

<result>17</result>