The fourth grade students went to visit the Science and Technology Museum. 242 people lined up in two columns. The distance between the front and back was 0.5 meters. How long is the line? The team advances 30 meters per minute. How many minutes will it take to pass a 90-meter-long bridge?
四年级同学去参观科技馆，242人排成两路纵队，前后两人间的间距为0.5米，队伍长多少米？队伍每分钟前进30米，现要通过一条长90米的大桥，需几分钟？
<gadget id="calculator">150 / 30</gadget>
<output>5</output>

<result>5</result>