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
26
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://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
[originaltext]Everyonefacesdifficultiesfromtimetotime.Sometimesthe
下列关于劳动力市场非均衡的表述错误的是( )。A.企业解雇员工不需要付出成本
男性,40岁,劳累后胸骨后闷痛,气短,有时突感呼吸困难。查体:心界向左下扩大,胸
A.柴枳半夏汤 B.香附旋覆花汤 C.椒目瓜蒌汤合十枣汤 D.沙参麦冬汤合
我国货币市场基金投资组合的平均剩余期限不得超过( )。A.90天 B.180
保荐机构应当自持续督导工作结束后()内向中国证监会、证券交易所报送报告书。A.
A.咳嗽频作、声重,咽痒,痰白清稀 B.咳嗽不爽,痰黄黏稠,口渴咽痛 C.咳
同业借款是指商业银行相互间进行的资金余缺调剂,主要用于()的资金周转。A.长期
哪项符合限制性心肌病A.心内膜及心内膜下心肌纤维化 B.心肌间质纤维化 C.
建设工程施工风险管理过程中,风险识别的工作有()。A.分析各种风险的损失量
最新回复
(
0
)