Group A and Group B jointly complete 150 machine parts. It is known that group A can make 24 parts in 12 minutes, and group B can make 3 parts per minute. How many minutes did it take Team A to complete this batch of parts?
甲、乙二组共同完成150个机器零件．已知甲组12分钟能做24个零件，乙组每分钟能做3个零件．完成这批零件时，甲组用了多少分钟？
<gadget id="calculator">24 / 12</gadget>
<output>2</output>

<gadget id="calculator">2 + 3</gadget>
<output>5</output>

<gadget id="calculator">150 / 5</gadget>
<output>30</output>

<result>30</result>