The ratio of the number of people in classes A and B is 5:6. It is known that there are 60 students in class A and how many people are there in class B.
甲乙两个班人数比是5：6，已知甲班有60人，乙班有多少人．
<gadget id="calculator">60 / 5</gadget>
<output>12</output>

<gadget id="calculator">12 * 6</gadget>
<output>72</output>

<result>72</result>