a train is moving at speed of 25 kmph , another train
moving the same direction at a speed of 49 kmph crossed a
man in the first train in 10 sec ? wht is the length of the
second train ?
Answers were Sorted based on User's Feedback
Answer / ajeet
relative velocity will be=49-25=24km/h
then lenth of second train will be=
24*(5/18)*10=66.66 mtr
Is This Answer Correct ? | 7 Yes | 1 No |
Answer / reddipavanakrishna
Relative velocity of trains = 49kmph -25 kmph = 24kmph
=6.67m/s
Time taken to cross the first train = 10 sec
Length of the second train = Relative Velocity * Time taken
to cross the first Train = 6.67 *10 = 66.7 metres
Is This Answer Correct ? | 5 Yes | 0 No |
Sir / madam, My question is In selling an article for Rs.76, there is profit of 52%. If it is sold for Rs.75 the profit percent will be a. 44 b. 46 c. 48 d. 50 Advance Thanks, R.Rengaraj {SCE 12/2008/Pg 2 of 85} {On this forum my 1st Question.}
why the meena categery candidates ...top the competative exam?
opposite to ESSENTIAL?
I most like to work with? Most men act though?
a laborer can dig a hole 8feet squatre and 8 feet deep in 8 days.how long will it take him ti dig a hole 4 feet square and 4 feet deep?
When Raja was born, his father was 32 years older than his brother and his mother was 25 years older than his sister. If Raja’s brother is 6 years older than Raja and his mother is 3 years younger than his father, how old was Raja’s sister when Raja was born?
2 men at same tym start walking towards each other from A n B 72 kms apart. sp of A is 4kmph.Sp of B is 2 kmph in 1st hr,2.5 in 2nd, 3 in rd. n so on…when will they meet i in 7 hrs ii at 35 kms from A iii in 10 hrs iv midway
There is a school with 100 students and correspondingly 100 lockers, all of which start off closed. The first student opens every locker and the second students closes every other locker starting with the second (2,4,6...etc..) . The 3rd student changes the state of the lockers numbered (3,6,9.. etc.). The fourth student changes the state of the lockers numbered (4,8,12.. etc..).. This continues until all the 100 students passes along the lockers.. when all the 100 student is done which locker is closed and which locker is in open condition?
A plane moves from 9? N40? E to 9? N40? W. If the plane starts at 10 am and takes 8 hours to reach the destination, find the local arrival time.
Ganesh and Shankar travel abroad and take more luggage than the airlines allow. They have to pay extra money for it. They carry 52 kgs together and pay $60 and $100 respectively. Now, if the same luggage was carried by only Ganesh it would cost him $340. If the airlines charges only at one rate for extra luggage what is the maximum luggage that a person can carry without paying extra?
he hour hand lies between 3 and 4. Tthe difference between hour and minute hand is 50 degree.What are the two possible timings?
Everyday in his business a merchant had to weigh amounts from 1 kg to 121kgs, to the nearest kg.What are the minimum number of weight required and how heavy should they be?