Interested to Buy Any Domain ? << Click Here >> for more details...
A train speeds past a pole in 15 seconds and a platform 100
m long in 25 seconds. Its length is
- 7 Answers
- 17445 Views
- TCS, I also Faced
- E-Mail Answers
Answer Posted / sindu.m
The answer is 150m.
Let the length of the train be x metres and its speed by y
m/sec.
Then,
x/y = 15 => y = x/15 .
Therefore
(x + 100)/25 = x/15
=> 15(x + 100) = 25x
=> 15x + 1500 = 25x
=> 1500 = 10x
=> x = 150 m.
| Is This Answer Correct ? | 64 Yes | 3 No |
Post New Answer View All Answers
The population of a city increases @ 4% p.a. There is an additional annual increase of 4% of the population due to the influx of job seekers, find the % increase in population after 2 years ?
box 1 cotain odd value X or Y the box 2 =X i.e 7 or 12 box 3= Y has value 19 if X is 7 or 31 if x is 12 get even value X or Y Use any operator steps allowed 3
A son and father goes for boating in river upstream . After rowing for 1 mile son notices the hat of his fathe falling in the river. After 5 min. he tells his father that his hat has fallen. So they turn around and are able to pick the hat at the point from where they began boating after 5 min. Tell the speed of river.
A man sells apples. First he gives half of the total apples what he has and a half apple. Then he gives half of the remaining and a half apple. He gives it in the same manner. After 7 times all are over. How many apples did he initially have?
if the sum of five consecutive nos. 35? how many prime numbers are there :
A tailor has 37.5 metres of cloth and he has to make 8 piecesout of a metre of cloth. How many pieces can he make out of this cloth?
Asmita invests an amount of Rs. 9535 at the rate of 4 per cent per annum to obtain a total amount of Rs. 11442 on simple interest after a certain period. For how many years did she invest the amount to obtain the total sum?
Joe started from Bombay towards pune and her friend julie in opposite direction.they meet at a point .distance travelled by joe was 1.8 miles more than that of julie.after spending some both started there way.joe reaches in 2 hours while julie in 3.5 hours. Assuming both were travelling with constant speed.Wath is the distance between the two cities.
A speedboat whose speed is 15 kmph in still water goes 30 kmph downstream and comes back in a total of 4hrs 30min. What is the speed of the stream in kmph?
Starting from point A, Jayant walked 15m towards west. He turned left and walked 20 m. He then turned left and walked 15m. After this he turned right and walked 12m. in which direction is Jayant from X and how far has he walked from point X?
In a mixture, R is 2 parts and S is 1 part. In order to make S to 25% of the mixture, how much of R is to be added?
Find the hypotenuse of a right angle isoceles triangle whose area is 50.
500 men are arranged in an array of 10 rows and 50 columns . ALL tallest among each row are asked to fall out . And the shortest among THEM is A. Similarly after resuming that to their original positions that the shortest among each column are asked to fall out. And the longest among them is B . Now who is taller among A and B ?
The dimensions of a certain box are 48" X 30" X 52". If the size of the box is increased proportionately until the sum of its dimensions equals 156", what will be the increase in the shortest side?
There are coins of Rs.5, 2, 1,50p, 25p, 10p, 5p. each one has got a weight. Rs 5 coin weighs 20gms.find the minimum number of coins to get a total of 196.5gms.
