Latest Wipro Aptitude Question SOLUTION: A train travelled from Delhi to Patna and back in a certain time at the rate of 60kmph.But if the train had travelled from Delhi to Patna at rate of rate 80Kmph. And back from Patn

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A train travelled from Delhi to Patna and back in a certain time at the rate of 60kmph.But if the train had travelled from Delhi to Patna at rate of rate 80Kmph. And back from Patna to Delhi at the rate of 40Kmph. It would take two hours Longer. Find the distance between Delhi and Patna?

Asked In Wipro GAYATHRI MOHAN (11 years ago)

Unsolved Read Solution (4)

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Read Solution (4) :

ranvijay kumar  (11 years ago)

let the distance travalled be x
then (x/80+x/60)-2x/60=2 hour
so by solving x=480 km

Is this solution Helpfull? Yes (20) | No (3)  

deepanya.m  (10 years ago)

let distance=x
2x/60-(x/80+x/40)
=240 for going
ence for to & fro 2*240=480

Is this solution Helpfull? Yes (3) | No   

Parthiban  (11 years ago)

ans=480
480/60=8hr
up and down so 16hr
480/80=6hr for up
480/40=12hr for down
so 18 hr

Is this solution Helpfull? Yes (2) | No (1)  

Devendra Marghade  (8 years ago)

480 km.

If Distance between Delhi and Patna= x km. then
Round trip time taken with speed of 60 kmph= 2x/60
Time taken when travelled from Delhi to Patna @80 kmph and back from Patna to Delhi @40 kmph=(x/80)+(x/40)
As later time is 2 hours more than previous, so (2x/60) +2 =(x/80) + (x/40)
On solving x=480

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