Read the passage carefully and answer the following questions 
NOT everything looks lovelier the longer and closer its inspection. But Saturn does. It is gorgeous through Earthly telescopes. However, the 13 years of close observation provided by Cassini, an American spacecraft, showed the planet, its moons and its remarkable rings off better and better, revealing finer structures, striking novelties and greater drama. . . .
By and large the big things in the solar system—planets and moons—are thought of as having been around since the beginning. The suggestion that rings and moons are new is, though, made even more interesting by the fact that one of those moons, Enceladus, is widely considered the most promising site in the solar system on which to look for alien life. If Enceladus is both young and bears life, that life must have come into being quickly. This is also believed to have been the case on Earth. Were it true on Enceladus, that would encourage the idea that life evolves easily when conditions are right.
One reason for thinking Saturn’s rings are young is that they are bright. The solar system is suffused with comet dust, and comet dust is dark. Leaving Saturn’s ring system (which Cassini has shown to be more than 90% water ice) out in such a mist is like leaving laundry hanging on a line downwind from a smokestack: it will get dirty. The lighter the rings are, the faster this will happen, for the less mass they contain, the less celestial pollution they can absorb before they start to discolour. . . . Jeff Cuzzi, a scientist at America’s space agency, NASA, who helped run Cassini, told the Lunar and Planetary Science Conference in Houston that combining the mass estimates with Cassini’s measurements of the density of comet-dust near Saturn suggests the rings are no older than the first dinosaurs, nor younger than the last of them—that is, they are somewhere between 200m and 70m years old.
That timing fits well with a theory put forward in 2016, by Matija Cuk of the SETI Institute, in California and his colleagues. They suggest that at around the same time as the rings came into being an old set of moons orbiting Saturn destroyed themselves, and from their remains emerged not only the rings but also the planet’s current suite of inner moons—Rhea, Dione, Tethys, Enceladus and Mimas. . . .
Dr Cuk and his colleagues used computer simulations of Saturn’s moons’ orbits as a sort of time machine. Looking at the rate at which tidal friction is causing these orbits to lengthen they extrapolated backwards to find out what those orbits would have looked like in the past. They discovered that about 100m years ago the orbits of two of them, Tethys and Dione, would have interacted in a way that left the planes in which they orbit markedly tilted. But their orbits are untitled. The obvious, if unsettling, conclusion was that this interaction never happened—and thus that at the time when it should have happened, Dione and Tethys were simply not there. They must have come into being later. . . .
Q. Based on information provided in the passage, we can infer that, in addition to water ice, Saturn’s rings might also have small amounts of:
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Pathways Academy answered  •  11 hours ago
In the fourth paragraph, it is mentioned that "they suggest that at around the same time as the rings came into being an old set of moons orbiting Saturn destroyed themselves, and from their remains emerged not only the rings......". From this, we can infer that the rings were formed from the moons. Also, from the third paragraph, it can be inferred that Saturn's rings consist of comet dust.
Hence, option D is the correct answer.

The number of common terms in the two sequences: 15, 19, 23, 27, . . . . , 415 and 14, 19, 24, 29, . . . , 464 is
  • a)
    21
  • b)
    20
  • c)
    18
  • d)
    19
Correct answer is option 'B'. Can you explain this answer?

Imk Pathshala answered  •  11 hours ago
A: 15, 19, 23, 27, . . . . , 415
B: 14, 19, 24, 29, . . . , 464
Here the first common term = 19
Common difference = LCM of 5, 4=20
19+(n-1)20 415
(n-1)20 ≤ 396
(n-1)20 ≤ 396
(n-1) ≤ 19.8
n=20

DIRECTIONS for the question:
Read the information given below and answer the question that follows.
In a parking lot, there are seven vehicles parked in a row. Each of the vehicles is a car or a scooter or a bike. Each of the vehicles is owned by exactly one person among Ankita, Nitika and Ritika. Each person owns at least one vehicle. There is at least one vehicle of each type. No two of them own the same number of vehicles. For any two types of vehicles, the total number is different. All the vehicles of a particular type (if more than 1) is not owned by the same person and no one owned more than two vehicles of any one type. The names of the seven vehicles are - Kawasaki, Yamaha, Zen, Bajaj, Alto, Ritz and Priya. All the vehicles of a particular type are not parked together. No two vehicles owned by the same person are adjacent to each other. Each of Ankita's vehicles is to the immediate left of a scooter. Yamaha is owned by Nitika and is parked at one end of the row. Kawasaki is two places away to the right of Bajaj and these two are owned by the same person. Neither Kawasaki nor Bajaj is at any end of the row. Ritz, a bike, is adjacent to a scooter and a car and each of these three is owned by a different person. Zen is to the right of Alto which is owned by Ritika. Priya is to the left of Ritz. Ritika owns a scooter.
Q. Which of the following gives the complete list of the vehicles owned by Nitika?
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Nipun Tuteja answered  •  11 hours ago
There are seven vehicles of three types and three owners. No two types of vehicles are same in number and no two among the owners have the same number of vehicles. Hence the number of vehicles of each type is 4, 2 and 1 and the number of vehicles with each of them is 4, 2 and 1 in any order.
As, no two vehicles owned by the same person are adjacent to each other, the vehicles of the person who own four vehicles will be at the first, third, fifth and seventh positions. As, the vehicle owned by Nitika is at one end, Nitika owned four vehicles.
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Nitya Santoo asked   •  43 minutes ago

The communities of ants are sometimes very large ,numbering even up to 500, individuals and it is a lesson to us that no one has ever yet seen quarrel between any two ants belonging to the same community .On the other hand ,it must be admitted that they are in hostility not only with most other insects ,including ants of different species ,but even with those of the same species if belongs to different communities .I have over and over again introduced ants from one of my nests into another nest of the same species ; and they were in variable attacked , seized by a leg or an antenna and dragged out .It is evident therefore ,that the ants of each community all recognize one another ,which is very remarkable .But more than this ,I several times divided a nest into two halves and found that even after separation of a year and nine months they recognize one another and were perfectly friendly ,while they at once attacked ants from a different nest ,although of the same species. 

It has been suggested that the ant of each nest have some sign or password by which they recognize one another .To test this I made some of them insensible, first I tried chloroform; but this was fatal to them and I do not consider the test satisfactory .I decided therefore to intoxicate them. This was less easy then I had expected .None of my ants would voluntarily degrade themselves by getting drunk .However ,I got over the difficulty by putting them into whisky for a few moments .I took fifty specimens –25 percent from one nest and 25 percent from another made them dead drunk ,marked each with a spot of paint ,and put them on a table close to where other ants from one of the nests were feeding .The table was surrounded as usual with a most of water to prevent them from straying .The ants ,which were feeding soon noticed those ,which I had made drunk .They seemed quite astonished to find their comrades in such a disgraceful condition ,and as much at loss to know what to do with their drunkards as we were .After a while ,however ,they carried them all away the strangers they took to the edge of the moat and dropped into the water ,while they bore their friends home in the nest where by degrees they slept off the effects of the spirits .Thus it is evident that they know their friends even when incapable of giving any sign or password.
Q. Although the author is a scientist,his style of writing also exhibits a quality of:
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DIRECTIONS for the question: Read the passage and answer the question based on it.
Consider these recent headlines: “Want to be Happier? Be More Grateful,”  “The Formula for Happiness: Gratitude Plays a Part,” “Teaching Gratitude, Bringing Happiness to Children,” and my personal favorite “Key to Happiness is Gratitude, and Men May be Locked Out.”
Buoyed by research findings from the field of positive psychology, the happiness industry is alive and flourishing in America. Each of these headlines includes the explicit assumption that gratitude should be part of any 12-step, 30-day, or 10-key program to develop happiness. But how does this bear on the question toward which this essay is directed? Is gratitude queen of the virtues? In modern times gratitude has become untethered from its moral moorings and collectively, we are worse off because of this. When the Roman philosopher Cicero stated that gratitude was the queen of the virtues, he most assuredly did not mean that gratitude was merely a stepping-stone toward personal happiness. Gratitude is a morally complex disposition, and reducing this virtue to a technique or strategy to improve one’s mood is to do it an injustice.
Even restricting gratitude to an inner feeling is insufficient. In the history of ideas, gratitude is considered an action (returning a favor) that is not only virtuous in and of itself, but valuable to society. To reciprocate is the right thing to do. “There is no duty more indispensable that that of returning a kindness” wrote Cicero in a book whose title translates “On Duties.” Cicero’s contemporary, Seneca, maintained that “He who receives a benefit with gratitude repays the first installment on his debt.”  Neither believed that the emotion felt in a person returning a favor was particularly crucial. Conversely, across time, ingratitude has been treated as a serious vice, a greater vice than gratitude is a virtue. Ingratitude is the “essence of vileness,” wrote the great German philosopher Immanuel Kant while David Hume opined that ingratitude is “the most horrible and unnatural crime that a person is capable of committing.”
Gratitude does matter for happiness. As someone who for the past decade has contributed to the scientific literature on gratitude and well-being, I would certainly grant that.  The tools and techniques of modern science have been brought to bear on understanding the nature of gratitude and why it is important for human flourishing more generally. From childhood to old age, accumulating evidence documents the wide array of psychological, physical, and relational benefits associated with gratitude.  Yet I have come to the realization that by taking a “gratitude lite” approach we have cheapened gratitude. Gratitude is important not only because it helps people feel good, but also because it inspires them to do good. Gratitude heals, energizes, and transforms lives in a myriad of ways consistent with the notion that virtue is both its own reward and produces other rewards.
To give a flavor of these research findings, dispositional gratitude has been found to be positively associated qualities such as empathy, forgiveness, and the willingness to help others.  For example, people who rated themselves as having a grateful disposition perceived themselves as having more prosocial characteristics, expressed by their empathetic behavior, and emotional support for friends within the last month.  When people report feeling grateful, thankful, and appreciative in studies of daily experience, they also feel more loving, forgiving, joyful, and enthusiastic. Notably, the family, friends, partners and others that surround them consistently report that people who practice gratitude are viewed as more helpful, more outgoing, more optimistic, and more trustworthy. On a larger level, gratitude is the adhesive that binds members of society together. Gratitude is the “moral memory of mankind” wrote noted sociologist Georg Simmel.
Q. As per the context of the passage, identify the correct statements:
I. According to the author, the happiness industry has over-used the concept of gratitude for its own benefit.
II. According to Cicero, gratitude induces a feeling of debt in the benefactor.
III. The rewards obtained from gratitude cannot be limited to one sphere of human life.
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Bakliwal Institute answered  •  11 hours ago
Statement I can be directly derived from the lines: Buoyed by research findings from the field of positive psychology, the happiness industry is alive and flourishing in America. Each of these headlines includes the explicit assumption that gratitude should be part of any 12-step, 30-day, or 10-key program to develop happiness.
Statement II can be negated from the lines: Cicero’s contemporary, Seneca, maintained that “He who receives a benefit with gratitude repays the first installment on his debt.” 
The line actually means that if someone recieves a benefit with a feeling of gratitude, he has partially paid his debt already. The given statement states the opposite.
Statement III can be derived from the lines: Gratitude heals, energizes, and transforms lives in a myriad of ways consistent with the notion that virtue is both its own reward and produces other rewards.

DIRECTIONS for the question: Solve the following question and mark the best possible option.
A quadratic function f(x) attains a maximum of 10 at x = 2. The value of the function at x = 0 is 4. Find the value of f(x) at x = 5.
  • a)
    -3.5
  • b)
    -4
  • c)
    -5
  • d)
    4
Correct answer is option 'A'. Can you explain this answer?

Ruchika Chandi answered  •  11 hours ago
Let f(x) = ax2 + bx + c
► F(2) = 10 → 4a + 2b + c = 10
► F(0) = 4 → c = 4.

will be 0, 2ax + b = 0 → 4a + b = 0
Solving these we get
► a = -1.5  
► b = 6
► c = 4.
So, f(x) = -1.5x2 + 6x + 4 
at x = 5 gives -3.5.

DIRECTIONS for the question: Read the passage and answer the question based on it.
Workhouses have long assumed a central place in studies on the poor laws. While we know that the majority of relief claimants were actually given outdoor relief in money or in kind from the parish pay-table, welfare historians have shown that many individuals entered workhouses during moments of both short and long-term need. This dynamic has a long history. The Elizabethan poor laws permitted parishes to find accommodation for ‘poor impotent people’ in addition to the requirement to ‘set to work’ their poor. Some cities had obtained their own ‘Local Acts’ which contained specific legislation designed for the specific welfare needs of that locale. Central to these Acts was the workhouse. The first Local Act was passed in 1696 for the Civic Incorporation of Bristol.
Born in Staffordshire, Gilbert was a chief land agent to Lord Gower and a keen poor law reformer. Through his work, he developed an immense political, legal, commercial and industrial knowledge which enabled the Gower estate to become one of the most prosperous in England. Gilbert’s concern for the poor may have stemmed out of his role as agent, which had allowed him to take onboard the role of paymaster for a charity of naval officers’ widows. As Marshall noted, Gilbert thought old parish workhouses were ‘dens of horror’.  Such workhouses were too uncomfortable for those who were in poverty due to no fault of their own and places where the young were susceptible to ‘Habits of Virtue and Vice’ learnt from ‘bad characters’. For the sake of both the poor and the rates, Gilbert thought that workhouses should be reformed to promote industrious behavior.
These ideas culminated in a new bill and the subsequent Act of 1782 which enabled parishes to provide a workhouse solely for the accommodation of the vulnerable.  Although such residents were, as Gilbert put it, ‘not able to maintain themselves by their Labor’ outside of the workhouse they were still to ‘be employed in doing as much Work as they can’ within the workhouse.  Work was therefore a part of everyday life within a Gilbert’s Act workhouse. The able-bodied were only to be offered temporary shelter and instead were to be found employment and provided with outdoor relief. Those who refused such work (the ‘idle’) were to endure ‘hard Labor in the Houses of Correction’.
How was such a workhouse to be established and managed? Gilbert wanted to allow parishes to unite together so that they could combine their resources and provide a well built and maintained workhouse. According to Steve King, Gilbert’s Act was the first real breach of the Old Poor Law principle ‘local problem - local treatment’.  Yet, any ‘Parish, Town, or Township’ was also permitted to implement the law alone, and hence concerns over poverty did not always transcend parish boundaries. Gilbert’s Act workhouses were to be managed in a different way compared to the older parish workhouses. Gilbert believed that the poor laws had been ‘unhappily’ executed ‘through the misconduct of overseers’. Such officers, he claimed ‘gratify themselves and their Favorites, and to neglect the more deserving Objects’. This dim view of overseers was shared by many others at the time.
excerpted from 'Welfare of the vulnerable' by Samantha Shave
Q. Which among the following is not true as per the passage?
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Pioneer Academy answered  •  22 hours ago
Option A is clearly mentioned in the opening lines of second paragraph.
Nepotism means favoritism as the aversion for such attitude by Gilbert is mentioned in the concluding lines of the passage hence option B is ruled out.
Option C is mentioned in the last lines of second & Third paragraph - “Gilbert thought that workhouses should be reformed to promote industrious behavior.” & “Those who refused such work (the ‘idle’) were to endure ‘hard Labor in the Houses of Correction’.”
Sixteenth century will mean era from 1501 to 1599 and the first Local Act was passed in 1696 which implies late seventeenth century. As per the question Option D is the correct answer.

Solve the following question and mark the best possible option.
Three companies, Indian, Jet and Deccan, run bus services between Adhanagar and  Puranagar. The durations of the journey and the fares charged are different for all three companies. Last year, the fares charged by Indian, Jet and Deccan were in the ratio 6 : 9 : 4. This year, as compared to last year, Indian and Jet increased their fares by 20% and 10% respectively, while Deccan has not changed the fare. The times taken by buses of Indian, Jet and Deccan to complete a one way trip from Adhanagar to Puranagar are in the ratio 3:2:6. The buses take the same time when travelling in either direction. All the buses make a total of 200 trips from Adhanagar to Puranagar and back every year. The collection of Deccan is 1600 lakhs for this year. A bus can take a maximum of 100 passengers and all the buses run to maximum capacity. Buses run by Jet take 1 hour to travel from Adhanagar to Puranagar.  A person makes 2 trips from Adhanagar to Puranagar and one from Puranagar to Adhanagar. If he does so in 6 hours of travelling time, then the minimum fare he had to pay for the trip is
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Imk Pathshala answered  •  22 hours ago
Let the fares charged by Indian, Jet and Deccan be 6x, 9x and 4x respectively. Total trips = 400
Therefore collection/trip = 1600 lakhs / 400 = 4lakhs Total number of passengers = 100 fare in Deccan = 4lakhs/100 = Rs. 4000 Therefore 4x = 4000 => x = 1000. The fares of Indian and Jet after the rise will be 7.2x and 9.9x respectively. Since the total journey time is 6hrs, the only possibility is one trip by Deccan and two trips by " Indian. Thus the total fare will be 4000 + 2 × 7200 = Rs. 18,400.

DIRECTIONS for the question: Read the passage and answer the question based on it.
Last semester I tried to create a college classroom that was a technological desert. I wanted the space to be a respite from the demands and distractions of smartphones, tablets, and computers. So I banned the use of technology " because asking students to be professional digital citizens had not worked.
Simply requesting that students put away their phones was an exercise in futility. Adding a line in the syllabus that there would be grade penalties for unprofessional use of technology brought about no change in their habits of swiping and clicking. They meant no disrespect. Technology pulled at them " and pulls at us " creating a sense of urgency that few can ignore. I get it. This is not a college-student problem (I've been to faculty meetings). It's a human problem.
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Talent Skill Learning answered  •  22 hours ago
Option 1 is too extreme in nature and the extreme negative sentiment expressed by it is not expressed in the paragraph.
 Option 2 is the apt answer in this case. It reflects the general tone and tenor of the author of the passage and highlights the most essential aspect of the paragraph: the problem in the classroom is one that the whole society faces right now.
► Option 3 reverses the causation in this case. The problem is one that society suffers from and classrooms are not explicitly targeted.
► Option 4 presents incorrect information. The author at no point quotes that education has been disrupted.

Solve the following question
Find the number of digits in 1001101. (in numerical value)
    Correct answer is '304'. Can you explain this answer?

    Nipun Tuteja answered  •  22 hours ago
    log10 1001101 = 101
    101 log10 1001
    ⇒101 x  3 = 303.
    So, the number of digits in 1001101 is 304 as number of digits = characteristic + 1
    303 + 1 = 304

    f is a function such that f(x – 2) + f(x + 2) = f(x). The value of f(1) + f(2) + f(3) + … + f(11) is [given that f(0) = 4, f(1) = 6, f(2) = 8].
    • a)
      176
    • b)
      88
    • c)
      -24
    • d)
      -4
    Correct answer is option 'D'. Can you explain this answer?

    Aadhar Academy answered  •  22 hours ago
    f(x – 2) + f(x + 2) = f(x).
    f(0) + f(4) = f(2) and  f(2) + f(6) = f(4)
    ⇒  f(2) + f(6) = f(2) – f(0)  i.e. f(0) = -f(6).
    So, f(x) = -f(x + 6). f(1) = -f(7) and so on.
    f(1) + f(2) + f(3) + … + f(11) = f(6) = -f(0) = -4.
    Hence, option 4.

    DIRECTIONS for the question: Read the passage and answer the question based on it. 
    My new mistress proved to be all she appeared when I first met her at the door- a woman of the kindest heart and feelings. She had never had a slave under her control previously and prior to her marriage she had been dependent upon her own industry for a living. She was by trade a weaver, and by constant application to her business, she had been in a good degree preserved from the lighting and dehumanizing effects of slavery. I was utterly astonished at her goodness. I scarcely knew how to behave towards her. My early instruction was all out of place. The crouching servility, usually so acceptable a quality in a slave, did not answer when manifested toward her. Her favor was not gained by it; she seemed to be disturbed by it. She did not deem it to be impudent or unmannerly for a slave to look in the face. The meanest slave was put fully at ease in her presence, and none left without feeling better for having seen her. But alas! This kind heart had but a short time to remain such. The fatal poison of irresponsible power was already in her hands, and soon commenced its internal work.
    Very soon I went to live with Mr. and Mrs. Auld; she very kindly commenced to teach me the A, B, C. After I had learnt this, she assisted me in learning to spell words of three and four letters. Just at this point of my progress, Mr. Auld found out what was going on , and at once forbade Mrs. Auld to instruct me further, telling her that it was unlawful, as well as unsafe, to teach a slave to read. Further he said, "If you give a slave an inch, he will take a mile. A slave should know nothing but to obey his master - to do as he is told to do. Learning would spoil the best slave in this world. "Now," said he, "If you teach that boy (speaking of myself) how to read, there would be no keeping him. It would forever unfit him to be a slave. He would at once become unmanageable, and of no value to his master. As to him, it could do him no good, but a great deal of harm. It would make him discontented and unhappy. "These words sank deep into my heart, stirred up sentiments within that lay slumbering, and called into existence an entirely new train of thought. I now understood what had been to me a most perplexing difficulty - the white man's power to enslave the black man. From that moment, I understood that pathway from slavery to freedom. Though conscious of the difficulty of learning without a teacher, I set out with high hope, and a fixed purpose, at whatever cost of trouble, to learn how to read. The very decided manner with which my master spoke, and strove to impress his wife with the evil consequences of giving me instruction, served to convince me that he was deeply sensible of the truths he was uttering. It gave me the best assurance that I might rely with the utmost confidence on the results which, he said, would flow from teaching me to read. What he most dreaded, that I most desired. What he most loved, that I most hated. That which to him was great evil, to be carefully shunned, was to me a great good, to be diligently sought; and the argument which he so warmly urged, against my learning to read, only served to inspire me with a desire and determination to learn. In learning to read, I owe almost as much to the bitter opposition of my master, as to the kindly aid of my mistress. I acknowledge the benefit of both.
    Q. For which of the following reasons does Mr. Auld forbid his wife to educate the slave?
    A. Providing slaves with an education violates the law
    B. He believes slaves lack the capacity for education
    C. He fears education would leave the slave less submissive
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    Mn M Wonder Series answered  •  22 hours ago
    Refer second para: ‘Mr. Auld found out what was going on , and at once forbade Mrs. Auld to instruct me further, telling her that it was unlawful, as well as unsafe, to teach a slave to read.’
    ►The author states that Mr. Auld wants his wife to stop teaching him because Mr. Auld feels that if a slave learns to read then he is of no use to his master. Also that the slave will not be manageable any longer and that the slave himself will not be happy. Both A and C are correct.

    DIRECTIONS for the question: Go through all the option and mark the one which is odd.
    • a)
    • b)
    • c)
    • d)
    Correct answer is option 'A'. Can you explain this answer?

    Ruchika Chandi answered  •  22 hours ago
    ►All other figures can be rotated into each other.
    ►Option A is the one, which cannot be made by rotating the other figures.
    Hence the answer is option 1.
    Harsh Raj asked   •  4 hours ago

    The passage given below is followed by four summaries. Choose the option that best captures the author ’s position.
    For each of the past three years, temperatures have hit peaks not seen since the birth of meteorology, and probably not for more than 110,000 years. The amount of carbon dioxide in the air is at its highest level in 4 million years. This does not cause storms like Harvey- there have always been storms and hurricanes along the Gulf of Mexico- but it makes them wetter and more powerful. As the seas warm, they evaporate more easily and provide energy to storm fronts. As the air above them warms, it holds more water vapour. For every half a degree Celsius in warming, there is about a 3% increases in atmospheric moisture content. Scientists call this the Clausius-Clapeyron equation. This means the skies fill more quickly and have more to dump. The storm surge was greater because sea levels have risen 20 cm as a result of more than 100 years of humanstorm surge was greater because sea levels have risen 20 cm as a result of more than 100 years of human–related global warming which has melted glaciers and thermally expanded the volume of seawater.
    (2017)
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    Divya Wilson asked   •  18 hours ago

    Eight friends: Ajit, Byomkesh, Gargi, Jayanta, Kikira, Mamk, Prodosh and Tapesh are going to Delhi from Kolkata by a flight operated Py Cheap Air. In the flight, sitting is arranged in 30 rows, numbered 1 to 30, each consisting of 6 seats, marked by letters A to F from left to right, respectively. Seats A to C are to the left of the aisle (the passage running from the front of the aircraft to the back), and seats D to F are to the right of the aisle. Seats A and F are by the windows and referred to as Window seats, C and D are by the aisle and are referred to as Aisle seats while B and E are referred to as Middle seats. Seats marked by consecutive letters are called consecutive seats (or seats next to each other). A seat number is a combination of the row number, followed by the letter indicating the position in the row; e.g., 1A is the left window seat in the first row, while 12E is the right middle seat in the 12th row.
    Cheap Air charges Rs. 1000 extra for any seats in Rows 1, 12 and 13 as those have extra legroom. For Rows 2­10, it charges Rs. 300 extra for Window seats and Rs. 300 extra for Aisle seats. For Rows 11 and 14 to 20, it charges Rs. 200 extra for Window seats and Rs. 400 extra for Aisle seats. All other seats are available at no extra charge.
    The following are known:
    1. The eight friends were seated in six different rows.
    2. They occupied 3 Window seats, 4 Aisle seats and 1 Middle seat.
    3. Seven of them had to pay extra amounts, totaling to Rs. 4600, for their choices of seat. One of them did not pay any additional amount for his/her choice of seat.
    4. Jayanta, Ajit and Byomkesh were sitting in seats marked by the same letter, in consecutive rows in increasing order of row numbers; but all of them paid different amounts for their choices of seat. One of these amounts may be zero.
    5. Gargi was sitting next to Kikira, and Mamk was sitting next to Jayanta.
    6. Prodosh and Tapesh were sitting in seats marked by the same letter, in consecutive rows in increasing order of row numbers; but they paid different amounts for their choices of seat. One of these amounts may be zero.
    Q.
    How much extra did Jayanta pay for his choice of seat?​
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