Trains - Online Quiz


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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.

Questions and Answers

Q 1 - A train with a speed of 60 kmph crosses a pole in 30 seconds. The length of the train is

A - 500 m

B - 750 m

C - 900 m

D - 1000 m

Answer : A

Explanation

speed =  (60*5/18)m/sec  = 50/3 m/sec.
Length of the train = (50/3* 30)m = 500 m 

Q 2 - A 130 m long train crosses a bridge 30 seconds at 45 kmph. The length of the bridge is ?

A - 200 m

B - 225 m

C - 245 m

D - 250 m

Answer : C

Explanation

Let the length  of the bridge be x m.
Speed of the train = (130+x)/30 m/sec.
But, speed =(45*5/18)m/sec. =25/2 m/sec.
⇒ (130+x)/30 = 25/2 
⇒ 130 + x = 375
∴ x = 245 m

Q 3 - A train 100 m long moving at a speed of 50km/hr crosses a train 120m long coming from opposite side on parallel tracks in 6 sec. The speed of the second train is

A - 132 kmph

B - 82 kmph

C - 60 kmph

D - 50 kmph

Answer : B

Explanation

let the speed of the second  train be x kmph.
Their relative speed = (50+x) kmph ={ (50+x)* 5/18) m/sec.
Sum of their lengths = (100+120)m =220 m
220/ [(50+x)*5/18] = 6   ⇒30 (50+x)= 3960
⇒ 30x  =(3960-1500) = 2460
X = 82
Speed of the second train = 82 kmph.

Q 4 - A train 100 m in length passes a milestone in 10 sec. and another train of the same length is going in opposite direction in 8 sec. The speed of the second train is

A - 36 kmph

B - 48 kmph

C - 54 kmph

D - 60 kmph

Answer : C

Explanation

Speed of the first train = (100/10)m/sec. =  10m/sec.
Let the speed of the second train be x m/sec.
200/ (10+x) = 8   ⇒ 8(10+x) =200 ⇒ 8x = 120 ⇒ x =15 
∴  speed of the second train =15m/sec. = (15*18/5) =54km/hr

Q 5 - A train moving at the rate of 36 km per hour crosses a standing man in 10 sec. It will cross a platform 55m long, in

A - 11/2 sec

B - 6 sec

C - 15/2 sec

D - 31/2 sec

Answer : D

Explanation

speed of the train = (36*5/18)m/sec. =10m/sec.
Let the length of the second train be x meters. Then, x/10 =10 ⇒ x =100m
Time taken by the train to cross the platform = (100+55)/10 sec.=31/2 sec.

Q 6 - A train is running at the rate of 40kmph. A man is going in the same direction parallel to the train at 25kmph . If the train crosses the man in 48 sec. , the length of the train is

A - 50 m

B - 100 m

C - 150 m

D - 200 m

Answer : D

Explanation

relative speed = (40-25)kmph =15kmph  =(15*5/18) m/sec. =25/6 m/sec.
Length of the train = (25/6*48)m= 200 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

A - 4.36 pm

B - 4.42 pm

C - 4.48 pm

D - 4.50 pm

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


aptitude_trains.htm

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