Aptitude - Time and Distance - Discussion

Discussion Forum : Time and Distance - General Questions (Q.No. 4)

Time and Distance

A train can travel 50% faster than a car. Both start from point A at the same time and reach point B 75 kms away from A at the same time. On the way, however, the train lost about 12.5 minutes while stopping at the stations. The speed of the car is:

100 kmph

110 kmph

120 kmph

130 kmph

Answer: Option

Explanation:

Let speed of the car be x kmph.

Then, speed of the train =	150	x	=		3	x	kmph.
	100				2

	75	-	75	=	125
	x		(3/2)x		10 x 60

	75	-	50	=	5
	x		x		24

x =		25 x24		= 120 kmph.
		5

Discussion:

342 comments Page 26 of 35.

Jarvis said: 5 years ago

If it's 50x.

It says that train travels in 50% less speed than the car.

Purvi said: 5 years ago

How can we assume that car speed is 100 not other than that speed?

Yash said: 5 years ago

Let Car speed is x.
The train speed is 50% faster than x.
Then the train speed is x+50%of x.
x+50x/100 =150x/100.

Sulbha said: 5 years ago

How can we decide that train speed is more than 50% means? Car speed is 100? how come.

We can assume anything why 100?

Ramesh said: 5 years ago

Thanks @Bhavana.

Rohith said: 5 years ago

Can someone give a clear explanation for this problem?

Surya said: 5 years ago

75/x - 75/(3/2) =125/10*60.
Anyone can explain this?

How this 125/10*60 came?

Rezviii said: 5 years ago

Why dividing 125 by 10* 60?

Please explain it.

Sravani said: 5 years ago

Why to subtract the speed of the train from speed of car (75/x-75x/[3/2])?

Can anyone help me by explaining?

(1)

Kalyan said: 5 years ago

Can you explain how 150/100 came?

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