Teacher Wang and Teacher Zhang led 60 students to visit the zoo. Tickets for adults are 30 yuan per piece, and tickets for children are 15 yuan per piece. How much does it cost to buy tickets?
王老师和张老师领着60名学生去参观动物园，成人票30元/张，儿童票15元/张．购门票一共多少钱？
<gadget id="calculator">30 * 2</gadget>
<output>60</output>

<gadget id="calculator">15 * 60</gadget>
<output>900</output>

<gadget id="calculator">60 + 900</gadget>
<output>960</output>

<result>960</result>