Latest Syntel Aptitude Question SOLUTION: If a train runs at 40 kmph, it reaches its destination late by 11 minutes but if it runs at 50 kmph, it is late by 5 minutes only. The correct time for the train to complete its jo

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(#M40006930) SYNTEL Numerical Ability question Basic numeracy problem Keep an EYE

If a train runs at 40 kmph, it reaches its destination late by 11 minutes but if it runs at 50 kmph, it is late by 5 minutes only. The correct time for the train to complete its journey is:
1. 13 min.
2. 17 min.
3. 19 min.
4. 22 min.

Asked In Syntel (12 years ago)

Solved Devendra Marghade Read Solution (4)

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Read Solution (4) :

aayush  (10 years ago)

let time be x
(x+11)*40=50(x+5);
s=d/t;
d=t*s

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Reshma  (10 years ago)

ans:19
let time be
(x+11)*40=50(x+5);
x=19

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Devendra Marghade  (10 years ago)

19 min.

If the distance=x km., Time taken@40 kmph =x/40 and @50 kmph=x/50
Difference between these two time is (11-5)=6 min.=1/10 hour
So [(x/40)]-[(x/50)]= 1/6, x=20
Time taken @ 40 kmph=x/40= 20/40= 1/2 hours=30 min.,which is 11 min late
So correct time=30-11= 19 min.

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saipoojitha  (10 years ago)

let s1=40,s2=50
t1=t+11,t2=t+5
then from relation s=(d/t)
s1/s2=t2/t1,now we can solve it

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