# 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 - A train 132m long passes a telegraph post in 6 seconds. The speed of the train is

### Answer : C

### Explanation

speed =(132/6)m/sec =22 m/sec. =(22*18/5) kmph = (396/5) = 79.2 kmph

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

### 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 - 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 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

### 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

### 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 - Two trains, each 100m long, moving in opposite directions, cross each other in 8 sec. If one is moving twice fast as the other , then the speed of the faster train is

### Answer : C

### Explanation

Let the speed of the trains be x m/sec. and 2x n/sec. Relative speed = (x+2x)m/sec. =3x m/sec. (100+100)/8 = 3x ⇒ 24x =200 ⇒ x =25/3 ∴ speed of faster train = (50/3)m/sec. = (50/3*18/5) km/gr = 60 km/hr

Q 7 - Two trains , one from station A to station B and the other from B to A start simultaneously . After meeting , the trains reach their destinations after 9 hours and 16 hours respectively. The ratio of their speeds is

### Answer : B

### Explanation

(A's speed) : (b's speed ) = √b:√a= √16:√9 = 4:3