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Trains - Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to Trains. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Q 1 - The speed of a train 150 m long is 50 kmph. How much time will it take to pass a platform 600 m long ?
Answer : B
Explanation
Speed =(50*5/18) m/sec. =125/9 m/sec Required time = (600+ 150)/ (125/9) sec.=(750*9/125)sec. =54 sec.
Q 2 - A train 100 m long crosses a bridge of length 100 m in 6 sec. The train will cross another bridge of length 200 m in:
Answer : B
Explanation
Time taken to cover (100+100)m= 6 sec Speed of the train = 200/6 m/sec. Time taken to cover (100+200)m = (300*6/200) sec =9 sec.
Q 3 - Two trains 105m and 90m long run at the speeds of 45kmph and 72 kmph respectively in opposite directions on parallel tracks. The time which they take to cross the each other, is
Answer : B
Explanation
Sum of the lengths of the train =(105+90)m= 195 m Relative speed = (72+45) kmph = 117 kmph = (117*5/18)m/sec. =585/18 m/sec. Required time = (195*18/585 ) sec.= 6 sec.
Q 4 - A train overtakes two persons two persons walking in the same direction in which the train is going. These persons are walking at the rate of 2km/hr and 4km/hr and the train passes them completely in 9 sec. and 10 sec. respectively. The length of the train is
Answer : C
Explanation
let the length of the train be X km and its speed be y km/hr. Speed of the train relative to first man = (y-2) km/hr Speed of the train relative to second man =(y-4)km/hr ∴ x/(y-2) = 9/(60*60) and x/(y-4) =10/(60*60) ⇒ y-2 =400x and y-4 =360x ⇒ 400x+2=360x+4 ⇒40x=2 ⇒x=1/20km =(1/20*1000)m= 50m ∴ length of the train =50m
Q 5 - Two trains running in the same direction at 40 km/hr and 22 km/hr completely pass one another in 1 minute. If the length of the first train is 125 m, the length of the second train is
Answer : C
Explanation
Relative speed = (40-22)k/hr = 18km/hr =(18*5/18)m/sec.=5m/sec. Let the length of the second train be x meters. then, (125+x)/5= 60 ⇒ 125+x=300 ⇒ x =175m
Q 6 - A train is running at 36kmph completely crosses another train having half its length and travelling in the opposite direction at 54kmph, in 12 seconds. If it passes a platform in 3/2 minute , the length of the platform is
Answer : C
Explanation
Let the length of slower train be x meters. Then, the length of faster train = x/2 m. Relative speed = (36+54)kmph =(90*5/18)m/sec. =25m/sec. (x+x/2)/25= 12 ⇒ 3x/2*25= 12 ⇒3x =600 ⇒ x =200 Length of slower train = 200m Let the length of the platform be y meters. Then, (200+y)/(36*5/18)= 90 ⇒ 200+y= 900 ⇒ y= 700 Hence, the length of the platform is 700 m.
Q 7 - A train X start from Meerut at 4 pm and reaches Ghaziabad at 5p.m while another train Y start from Ghaziabad at 4p.m and reaches Meerut at 5.30 p.m . The two train will cross each other at
Answer : A
Explanation
Let the distance between meerut and Ghaziabad be x km. Time taken by y to cover x km =3/2 hours. Time taken by X to cover x km = 1 hours Speed of x = xkm/hr speed of y = 2x/3 km/hr Xy+2xy/3 =x ⇒ y (1+2/3) =1 ⇒ y = 3/5 hours = (3/5*60) min. =36 min. Hence, the two train meet at 4.36 p.m