首页
登录
职称英语
A school bus has 10 double seats in each of 2 rows. Two students can sit in each
A school bus has 10 double seats in each of 2 rows. Two students can sit in each
游客
2025-02-24
30
管理
问题
A school bus has 10 double seats in each of 2 rows. Two students can sit in each double seat. If an empty bus starts out and makes two stops, picking up three times the number of students at the second stop as at the first stop, and if the bus is then filled to seating capacity, how many students got on the bus at the second stop?
选项
A、5
B、10
C、15
D、20
E、30
答案
E
解析
某辆校车有两排座椅,每一排有10个双人座,每个双人座上可坐两个学生。若一辆空汽车开出并在途中停了两次,第二次停车时上车的学生人数是第一次停车时上车的学生人数的3倍,并且汽车在第二次停车后满载,问第二次停车时有多少个学生上车?
解:本题的正确答案是(E)。设第二次停车时有x人上车,则x+ x/3 = 10×2×2 → x=30
转载请注明原文地址:https://www.tihaiku.com/zcyy/3970814.html
相关试题推荐
Collegestudentsshouldbeencouragedtopursuesubjectsthatinterestthemrath
Inahistoryclassthatconsistedof30students,thenumberofseniorswas3mo
1977—1978TEXTBOOKINVENTORYFORSCHOOLSXANDYBYYEAROFPURCHASE(asaperce
Aschooldistricthas1,989computers,whichisapproximatelyonecomputerfore
Inaclassof120students,60percentcanspeakFrenchandtherestcanspeako
Inthe1978-1979schoolyear,if12percentoftheamountofcontributionsalloc
Jimscored95pointsin5basketballgamesforhisschool.Atthisrate,howman
Percentageofstudentswhoreportedspendingtimeonhomework
Percentageofstudentswhoreportedspendingtimeonhomework
Apollof2,000studentswastakenbeforeCentervilleCollegechangedthenam
随机试题
TheSt.LawrenceSeawayallowslargeshipstosailfromtheAtlanticOcean______
Donald:Let’seatout,shallwe?Debra:【D5】______I’vegonethroughmypaycheck
Modernindustrialsocietygrantslittlestatustooldpeople.Infact,such
Theconceptofpersonalchoiceconcerninghealthisimportantbecause______.[b
为防止沥青老化影响试验结果,沥青试样在灌模过程中,若试样冷却,不得重复加热。
男婴,生后7天,出生时有窒息史,突然出现高热、腹胀、暗红色稀便。查体:精神差,腹
外汇市场上一国货币与他国货币相互交换的比率是()。A.国际收支 B.汇率
A.22℃B.(4±2)℃C.37℃D.56℃E.4℃红细胞温抗体最活跃的温度是
2017年末,全国收费公路里程16.37万公里,约占公路总里程的3.43%。其中
根据《行政处罚法》、《行政许可法》、《行政强制法》及《税收征收管理法》等法律及行
最新回复
(
0
)