Latest A website Aptitude Question SOLUTION: A PASSANGER TRAIN TAKES TWO HOURS LESS FOR A JOURNEY OF 300KM IF ITS SPEED IS INCREASED BY 5KM/HR.FIND ITS NORMAL SPEED.

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(#M40151523) A WEBSITE Numerical Ability question TIME AND DISTANCE Keep an EYE

A PASSANGER TRAIN TAKES TWO HOURS LESS FOR A JOURNEY OF 300KM IF ITS SPEED IS INCREASED BY 5KM/HR.FIND ITS NORMAL SPEED.

Asked In A website ANANTHI.P (9 years ago)

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neha gupta  (9 years ago)

Let original distance and time be s and t.
then two equations can be formed:
300=s*t
300=(t-2)(s+5)
find the value of s from first equation and substitute it in second then we get a quadratic in t as follows: t^2 -2t-120=0
on solving we get t=12
therefore normal speed is 300/12=25km/hr

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