Ques:- A jogger running at 9 km/hr along side a railway track is 240 m ahead of the engine of a 120 m long train running at 45 km/hr in the same direction. In how much time will the train pass the jogger?
Recent Answer : Added by Ben Gulliano On 2023-05-23 15:53:20:
– While the train is moving, the jogger will also be running in the same direction.
– for the head(engine) of the train to get to the current position of the jogger 240m away, it will take:
45km/hr => 12.5m/s => 240/12.5 = 19.2 seconds.
– But in the same period of time, the jogger will still be running and will have moved to a new location by: 9km/hr => 2.5m/s => 2.5 * 19.2 = 48m
To get to the new location at the speed of 12.5m/s will take the train:
48/12.5 = 3.84sec
In this additional time, the jogger will move forward by:
3.84 * 2.5 = 9.6m
at a speed of 12.5m/s, it will take the train less than a second to cover the additional 9.6m
If we add the distance the jogger will cover in 1 second to 9.6, it is still less than what the train can cover per second. let us see (9.6 + 2.5 = 12.1)
Therefore, the head of the train will pass the runner at approximately: 19.2 + 3.84 + 1 => 24.04 seconds.
For the train to completely pass the runner, it will need its whole length of 120m to be in front of the runner.
This will take an additional (9.6 + 2) seconds.
Therefore for the length of the train to be ahead of the runner it will take approx. 35.65 (24.04 + 9.6 + 2) seconds
Ques:- What is that you want to achieve in the position?
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Ques:- It was calculated that 75 men could complete a piece of work in 20 days. When work was scheduled to commence, it was found necessary to send 25 men to another project. How much longer will it take to complete the work?
Recent Answer : Added by Admin On 2022-09-29 15:28:07:
One day work = 1 / 20
One mans one day work = 1 / ( 20 * 75)
Now:
No. Of workers = 50
One day work = 50 * 1 / ( 20 * 75)
The total no. of days required to complete the work = (75 * 20) / 50 =
30
Ques:- A train takes 9 sec to cross a pole. If the speed of the train is 48 kmph, then length of the train is
A. 80 m
B. 90 m
C. 120 m
D. 150 m
Recent Answer : Added by Ankit Bhikonde On 2022-09-21 17:57:43:
Ques:- January 7, 1992 was Tuesday. Find the day of the week on the same date after 5 years, i.e., on January 7, 1997?
A. Monday
B. Tuesday
C. Wednesday
D. Friday
E. Friday
Recent Answer : Added by S.kowsalya On 2022-05-17 09:08:19:
Tuesday
Ques:- Three pipes X, Y and Z can fill a tank in 6 hours. After working at it together for 2 hours, Z is closed and X and Y can fill the remaining part in 7 hours. The number of hours taken by Z alone to fill the tank is:
Ques:- The cost of an item is Rs 12.60. If the profit is 10% over selling price what is the selling price ?
Recent Answer : Added by Ajay On 2022-09-15 16:39:04:
1.26
Ques:- P is heavier than Q but lighter than R. Q is heavier than T. S is heavier than P but lighter than V. Who among them is the lightest? (a) V (b) S (c) T (d) R (e) None of these
Recent Answer : Added by Admin On 2020-05-17 12:03:31:
R>P>Q>T
V>S>P
so the lightest is T.
Ques:- What kind of people do you find it most difficult to work with? Why?
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Ques:- Three piles of chips–pile I consists one chip, pile II consists of two chips, and pile III consists of three chips–are to be used in game played by Anita and Brinda.The game requires: a)That each player in turn take only one chip or all chips from just one pile. b)That the player who has to take the last chip loses. c)That Anita now have her turn.From which pile should Anita draw in order to win?
Ques:- What would you do, if you get the Jackpot of 1crore?
Ques:- What makes you happy?
Ques:- Discuss the acceptance of Corporate Social Responsibility in business by Indian companies in recent years. Justify your answer by giving present practices.
Ques:- The number of prime number between 0 and 100 is
A. 17
B. 25
C. 31
D. 39
Recent Answer : Added by Shidane On 2021-08-18 01:31:09:
B.25
Ques:- The numbers 1, 2, 3, 4, 5, 6, 7, 8, and 9 must be put in the depicted triangle, in such a way that the sums of the numbers on each side are equal. How should the numbers be arranged in the triangle?
Recent Answer : Added by Sandeep tomar On 2021-08-25 14:15:29:
Average = (1+2+3+4+5+6+7+8+9)/3
= 45/3 = 15
Every side will contain sum of 15.
1st side contains 8 and 7.
2nd side contains 9 and 6.
3rd side contains 1,2,3,4 and 5.
Ques:- Three 6 faced dice are thrown together. The probability that all the three show the same number on them is -.
Ques:- What would the person who likes you least in the world say about you?
Ques:- In a square , all the mid points are joined. the inner square is shaded. If the area of the square is A, what is the shaded area?
Recent Answer : Added by Admin On 2020-05-17 11:59:41:
ans: A/2
u get a diamond shape when u join those mid points
consider the 4 unshaded triangles
and u can form 2 square
when u analyse the squares u will get the answer
Ques:- There is a printed book. The page numbers are not printed. Now the printing of page numbers is being done separately. If the total number of digits printed is 1095 then how many pages does the book have?
Ques:- In a team of 12 persons, 1/3 are women and 2/3 are men. To obtain a team with 20% women how many men should be hired?
Recent Answer : Added by Admin On 2020-05-17 12:00:23:
12(1/3) = 4 so women = 4
==>men = 12-4 = 8
if team needs 20% of women then men Will be 80%
consider u want to hire “x” men
so,
(12+x)(80/100) = 8 + x
so, x= 8
Ques:- If Rs.3250 be divided among Ram, Shyam and Mohan in the ratio of 1/2:1/3:1/4 then the share of each are?
Recent Answer : Added by DK BOSS On 2021-07-17 06:27:52:
Ques:- what is your approach to working under pressure?
Recent Answer : Added by Admin On 2020-05-17 12:05:57:
under pressure a person more effort to his work
Ques:- 555555 is divisible by
A. 23
B. 19
C. 17
D. 7
Recent Answer : Added by SIDDHESHWAR BIRAJADAR On 2022-08-14 16:46:06:
7
Ques:- Can you tell me about a situation where you used your imaginative skills to solve a very difficult problem?
Ques:- What do you mean by bpo?
Recent Answer : Added by hr On 2021-10-22 09:12:50:
Business Process Outsourcing, or BPO, refers to the process of contracting standard business functions to be handled by a party outside of the company.
BPO is the abbreviation for business process outsourcing, which refers to when companies outsource business processes to a third-party (external) company.
– While the train is moving, the jogger will also be running in the same direction.
– for the head(engine) of the train to get to the current position of the jogger 240m away, it will take:
45km/hr => 12.5m/s => 240/12.5 = 19.2 seconds.
– But in the same period of time, the jogger will still be running and will have moved to a new location by: 9km/hr => 2.5m/s => 2.5 * 19.2 = 48m
To get to the new location at the speed of 12.5m/s will take the train:
48/12.5 = 3.84sec
In this additional time, the jogger will move forward by:
3.84 * 2.5 = 9.6m
at a speed of 12.5m/s, it will take the train less than a second to cover the additional 9.6m
If we add the distance the jogger will cover in 1 second to 9.6, it is still less than what the train can cover per second. let us see (9.6 + 2.5 = 12.1)
Therefore, the head of the train will pass the runner at approximately: 19.2 + 3.84 + 1 => 24.04 seconds.
For the train to completely pass the runner, it will need its whole length of 120m to be in front of the runner.
This will take an additional (9.6 + 2) seconds.
Therefore for the length of the train to be ahead of the runner it will take approx. 35.65 (24.04 + 9.6 + 2) seconds