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Aptitude :: Problems on Trains

@ : Home > Aptitude > Problems on Trains > Important Formulas

Overview

Important Formulas

Exercise

General Questions

Data Sufficiency 1

Data Sufficiency 2

Data Sufficiency 3

"Everything you can imagine is real."

km/hr to m/s conversion:

a km/hr = a x5

m/s.18

1.

m/s to km/hr conversion:

a m/s = a x18

km/hr.5

2.

Formulas for finding Speed, Time and Distance3.

Time taken by a train of length lmetres to pass a pole or standing man or a signal

post is equal to the time taken by the train to coverlmetres.

4.

Time taken by a train of length lmetres to pass a stationery object of length b

metres is the time taken by the train to cover (l+ b) metres.

5.

Suppose two trains or two objects bodies are moving in the same direction at u

m/s and v m/s, where u > v, then their relative speed is = (u - v) m/s.

6.

ems on Trains Important Formulas - Aptitude Questions and Answers http://www.indiabix.com/aptitude/problems-on-trains

7/3/2013

7/30/2019 Time and Distance Important Formulas 2

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Suppose two trains or two objects bodies are moving in opposite directions at u

m/s and v m/s, then their relative speed is = (u + v) m/s.

7.

If two trains of length a metres and b metres are moving in opposite directions at

u m/s and v m/s, then:

The time taken by the trains to cross each other =(a + b)

sec.(u + v)

8.

If two trains of length a metres and b metres are moving in the same direction at u

m/s and v m/s, then:

The time taken by the faster train to cross the slower train =(a + b)

sec.(u - v)

9.

If two trains (or bodies) start at the same time from points A and B towards each

other and after crossing they take a and b sec in reaching B and A respectively,

then:

(A's speed) : (B's speed) = (b : a)

10.

Read more:

Problems on Trains - General Questions

Problems on Trains - Data Sufficiency 1

Problems on Trains - Data Sufficiency 2Problems on Trains - Data Sufficiency 3

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