Latest TCS Aptitude Question SOLUTION: ram and shakil run a race of 2000m. ram gives shakil a start of 200m and beats by 1min. next ram gives shakil a start of 6 mins and beats him by 1000m. find time in mins can run ra

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ram and shakil run a race of 2000m. ram gives shakil a start of 200m and beats by 1min. next ram gives shakil a start of 6 mins and beats him by 1000m. find time in mins can run race seperately

Asked In TCS gowri (9 years ago)

Unsolved Read Solution (11)

Is this Puzzle helpful?   (13)   (6) Submit Your Solution Time Distance and Speed

Read Solution (11) :

Surit Datta  (9 years ago)

ram travel 2000m then sakil travel 1800-v.[v = velocity of sakil]
ram travel 1000m then sakil travel 2000-6v.
i.e.2000/1000 = 1800-v/2000-6v
v = 200m/min
time taken by sakil=2000/200 = 10min
similrly time taken by ram = 8min

Is this solution Helpfull? Yes (9) | No (6)  

Surit Datta  (9 years ago)

check this @ VINOD CHAUHAN
LET r be velocity of ram and s be the velocity of Sakil
then
(2000/r)=(1800/s)-60......(1)
second case
distance Sakil travel in 6 min=360s
again equating time for both
1000/r=(2000-360s)/s.......(2)
solving (1) &(2) we get s = 20/6
putting value in first we get time = 480sec = 8min
similarly put for 2nd and we will get 10 min.
Understand this time?

Is this solution Helpfull? Yes (3) | No (2)  

Abhishek nkumar  (9 years ago)

ans. 8 min.
Assume that the ratio of speeds of ram and shakil be constant.let the speed of rahul and shakil be a & b m/min. respectively.
then
a/c to question,
a/b=2000/(1800-1*b)=1000/(2000-6b)
solving we get,
b=200 m/min,a=250m/min.
then time taken by ram to run a race of 2000m =2000/250=8 min.

Is this solution Helpfull? Yes (3) | No   

ishita jasoria  (9 years ago)

why are u taking 1000/r in second equation..

Is this solution Helpfull? Yes (2) | No   

Vinod chauhan  (9 years ago)

1------. Ram gives shakil a head start of 200m and beat him by 1 min.
So Ram speed is 200m is 60sec.(1 min)
2------. Shakil beats Ram by 1000m in 6 mins
i.e when ram covers 1000m then shakil covers 2000m by 6 mins.
so Shakil speed is 1000/6min =500/3
So ram speed is 2000/200=10 min.
and shakil speed is 2000/(500/3)=12min
ans is 10min,12min

Is this solution Helpfull? Yes (1) | No (6)  

gowri  (9 years ago)

ans is 8,10 bt i dnt knw the explanation @puja

Is this solution Helpfull? Yes (1) | No   

Divya  (8 years ago)

there is a problem with this question. in the second round Shakil will beat Ram by 1000m. if you now solve the question , the answer would be :
Shakil = 10 min
Ram = 8 min

Is this solution Helpfull? Yes (1) | No   

Vinod chauhan  (9 years ago)

@surit Datta
how can u divide 2000/200 as this is speed of Ram in 1 min???

Is this solution Helpfull? Yes | No (2)  

Puja  (9 years ago)

Gowri What is the ans ?????

Is this solution Helpfull? Yes | No (1)  

Ramyabalasubramanian  (9 years ago)

I CANT UNDERSTAND????

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Rahul Mahapatra  (9 years ago)

LET r be velocity of ram and s be the velocity of Shakil
then
(2000/r)=(1800/s)-60......(1)
second case
distance Shakil travel in 6 min=360s
again equating time for both
1000/r=(2000-360s)/s.......(2)
solving (1) &(2) we get s=20/6
putting value in first we get time =480sec=8m

Is this solution Helpfull? Yes | No   

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