The Nanpu Bridge is 8.33 kilometers long. Xiao Pang and Xiao Ding walk towards each other from both ends of the bridge. Xiao Pang walks 90 meters per minute, and Xiao Ding walks 80 meters per minute. After how many minutes did they meet on the bridge?
南浦大桥长8.33千米，小胖和小丁两人从桥的两端相向而行，小胖每分钟走90米，小丁每分钟走80米，经过多少分钟他们在桥中相遇？
<gadget id="calculator">8.33 * 1_000</gadget>
<output>8_330</output>

<gadget id="calculator">90 + 80</gadget>
<output>170</output>

<gadget id="calculator">8_330 / 170</gadget>
<output>49</output>

<result>49</result>