Wang Le and Zhang Qiang walked toward each other from two places 2,280 meters apart. Wang Le walked 60 meters per minute, Zhang Qiang walked 80 meters per minute, and Zhang Qiang set off 3 minutes after Wang Le started. Zhang Qiang met Wang Le after a few minutes ?
王乐和张强两人从相距2280米的两地相向而行，王乐每分钟行60米，张强每分钟行80米，王乐出发3分钟后张强才出发，张强出发几分钟与王乐相遇？
<gadget id="calculator">60 * 3</gadget>
<output>180</output>

<gadget id="calculator">2_280 - 180</gadget>
<output>2_100</output>

<gadget id="calculator">80 + 60</gadget>
<output>140</output>

<gadget id="calculator">2_100 / 140</gadget>
<output>15</output>

<result>15</result>