Model 3 Train Vs Bridge/Platform Practice Questions Answers Test with Solutions & More Shortcuts

Question : 1 [SSC CGL Tier-I 2016]

A train, 500 metre long, running at a uniform speed, passes a station in 35 seconds. If the length of the platform is 221 metre, the speed of the train in km/hr is

a) 74.16

b) 24.76

c) 78.54

d) 72$1/35$

Answer: (a)

Speed of train

= $\text"Length of train and platform"/ \text"Time taken in crossing"$

= $({221 + 500}/35)$ metre/second

= $(721/35)$ metre/second

= $({721 × 18}/{35 × 5})$ kmph

= 74.16 kmph

Question : 2 [SSC CGL Tier-I 2016]

A moving train passes a platform 50 metre long in 14 seconds and a lamp post in 10 seconds. The speed of the train (in km/h) is :

a) 36

b) 40

c) 45

d) 24

Answer: (c)

Let the length of train be x metre.

When a train crosses a platform, distance covered by it

= length of train and platform.

Speed of train

= ${x + 50}/14 = x/10$

${x + 50}/7 = x/5$

7x = 5x + 250

7x - 5x = 250

2x = 250 ⇒ x = $250/2$ = 125 metre

Speed of train = $x/10$

= $(125/10)$ m./sec.

= $(125/10 × 18/5)$ kmph = 45 kmph.

Question : 3 [SSC CGL Tier-I 2014]

A train 50 metres long passes a platform of length 100 metres in 10 seconds. The speed of the train in metre/second is

a) 10

b) 15

c) 20

d) 50

Answer: (b)

Using Rule 10,
If a train of length x m crosses a platform/tunnel/bridge of length y m with the speed u m/s in t seconds, then,
t = ${x + y}/u$

Speed of train

= $\text"Length of (train + platform)"/ \text"Time taken in crossing"$

= ${(50 + 100)}/10 = 150/10$ = 15 m/sec

Question : 4 [SSC CISF Constable 2011]

A train of length 500 feet crosses a platform of length 700 feet in 10 seconds. The speed of the train is

a) 85 ft/second

b) 100 ft/second

c) 120 ft/second

d) 70 ft/second

Answer: (c)

Speed of train

= $\text"Lengthof(train + platform)"/ \text"Timetaken tocross"$

= $({500 + 700}/10)$ feet/second

= 120 feet/second

Using Rule 10,

Here, x = 500 feet, y = 700 feet

t = 10 seconds, u = ?

using t = ${x + y}/u$

u = ${500 + 700}/10$

= 120ft/second

Question : 5 [SSC CGL Tier-I 2015]

If a man running at 15 kmph crosses a bridge in 5 minutes, the length of the bridge is

a) 500 metres

b) 750 metres

c) 1250 metres

d) 1000 metres

Answer: (c)

Using Rule 10,

Time = 5 minutes = $1/12$ hour

Length of bridge = Speed × Time

= 15 × $1/12 = 5/4$ km.

= $(5/4 × 1000)$ metre

= 1250 metre

IMPORTANT quantitative aptitude EXERCISES

Model 3 Train Vs Bridge/Platform Shortcuts »

Click to Read...

Model 3 Train Vs Bridge/Platform Online Quiz

Click to Start..

Recently Added Subject & Categories For All Competitive Exams

New 100+ Compound Interest MCQ with Answers PDF for IBPS

Compound Interest verbal ability questions and answers solutions with PDF for IBPS RRB PO. Aptitude Objective MCQ Practice Exercises all competitive exams

02-Jul-2024 by Careericons

Continue Reading »

100+ Mixture and Alligation MCQ Questions PDF for IBPS

Most importantly Mixture and Alligation multiple choice questions and answers with PDF for IBPS RRB PO. Aptitude MCQ Practice Exercises all Bank Exams

02-Jul-2024 by Careericons

Continue Reading »

IBPS Profit and Loss Questions Solved Problems with PDF

Most important Profit and Loss multiple choice questions and answers with PDF for IBPS RRB PO. 100+ Aptitude MCQ Practice Exercises all competitive exams

28-Jun-2024 by Careericons

Continue Reading »

100+ Average Aptitude Questions Answers solutions MCQ PDF

New Average multiple choice questions and answers with PDF for IBPS RRB PO. 100+ Quantitative Aptitude MCQ Practice Exercises all competitive exams

28-Jun-2024 by Careericons

Continue Reading »