首页
登录
职称英语
A train travelling at a speed of 75 mph enters a tunnel 2 —miles long. The lengt
A train travelling at a speed of 75 mph enters a tunnel 2 —miles long. The lengt
游客
2024-08-15
45
管理
问题
A train travelling at a speed of 75 mph enters a tunnel 2 —miles long. The length of the train is 1/4 mile. How long does it take for all of the train to pass through the tunnel, from the moment the front enters to the moment the rear emerges?
选项
A、2’12”
B、3’15”
C、2’20”
D、3’30"
答案
A
解析
火车的长度为1/4mile,隧道的长度为5/2miles,火车的速度为75mph,火车的长度加上隧道的长度再除以火车的速度,就可以得出走完这个隧道所用的时间。
转载请注明原文地址:https://tihaiku.com/zcyy/3720273.html
相关试题推荐
Atraintravellingataspeedof75mphentersatunnel2—mileslong.Thelengt
Atraintravelingataspeedof80mphentersatunnelthatis0.5mileslong.
Itsaysthattheuniversehasafinite(有限的)area,butnoonetravellingthrough
SupposeyouweretravellingtoSoutheastAsiaonacruiseship.Youhads
SupposeyouweretravellingtoSoutheastAsiaonacruiseship.Youhads
在工作日而不是周末出行,会节省不少费用。(ratherthan)Travellingonweekdaysratherthanweekendswil
WhatfirstinspiredMartinMiddleton’sinterestintravelling?[br][originalte
WhatfirstinspiredMartinMiddleton’sinterestintravelling?[br][originalte
WhatfirstinspiredMartinMiddleton’sinterestintravelling?[br][originalte
WhatfirstinspiredMartinMiddleton’sinterestintravelling?[originaltext]W(I
随机试题
LiLeiquickly______thestick______him.A、passed,intoB、passed,ontoC、past
NeitherBilly’smother______hisfatherknowsthewaytothevillage.A、andB、orC
Howmanyaretherequalitycontrolinspectionpoints?[br]Howtocheckthequal
[originaltext](32)Whydowecry?Canyouimaginelifewithouttears?Notonly
Fewpleasurescanequalsuchofacooldrinkonahotday.A、thisB、allthisC、th
智能建筑中的建筑自动化系统(BAS)管理控制的系统通常不包括()。A.暖通空
泥化夹层主要的物理力学性质有()。A.粘粒含量高 B.天然含水率高 C.
男性,22岁。跌倒时左手掌着地。查体:肘部向后突出并处于半屈状,肘部明显肿胀及压
何种辅助检查可以确诊无排卵性功血A.经前宫颈黏液见椭圆型细胞 B.基础体温呈双
采用注射给药可导致药理作用产生质的变化的药物是A.人参B.青皮C.附子D.当归E
最新回复
(
0
)