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Previous Year Questions
Let x, y, z and a be real numbers satisfying
4(x + 2y + 2z) = 2a and 4(x – y – z) = 3 + a.
Then, a equals:
Video Explanation

The chart below provides complete information about the number of countries visited by Dheeraj, Samantha
and Nitesh, in Asia, Europe and the rest of the world (ROW).
The following additional facts are known about the countries visited by them.
1. 32 countries were visited by at least one of them.
2. USA (in ROW) is the only country that was visited by all three of them.
3. China (in Asia) is the only country that was visited by both Dheeraj and Nitesh, but not by Samantha.
4. France (in Europe) is the only country outside Asia, which was visited by both Dheeraj and Samantha, but not
by Nitesh.
5. Half of the countries visited by both Samantha and Nitesh are in Europe.
How many countries in Asia were visited by at least one of Dheeraj, Samantha and Nitesh?
Video Explanation

How many countries in Europe were visited only by Nitesh?
Video Explanation

How many countries in the ROW were visited by both Nitesh and Samantha?
Video Explanation

How many countries in Europe were visited by exactly one of Dheeraj, Samantha and Nitesh?
Video Explanation

Two students, Amiya and Ramya are the only candidates in an election for the position of class representative.
Students will vote based on the intensity level of Amiya’s and Ramya’s campaigns and the type of campaigns
they run. Each campaign is said to have a level of 1 if it is a staid campaign and a level of 2 if it is a vigorous
campaign. Campaigns can be of two types, they can either focus on issues, or on attacking the other candidate.
If Amiya and Ramya both run campaigns focusing on issues, then
• The percentage of students voting in the election will be 20 times the sum of the levels of campaigning of the
two students. For example, if Amiya and Ramya both run vigorous campaigns, then 20 × (2+2)%, that is, 80% of
the students will vote in the election.
• Among voting students, the percentage of votes for each candidate will be proportional to the levels of their
campaigns. For example, if Amiya runs a staid (i.e., level 1) campaign while Ramya runs a vigorous (i.e., level 2)
campaign, then Amiya will receive 1/3 of the votes cast, and Ramya will receive the other 2/3. The abovementioned percentages change as follows if at least one of them runs a campaign attacking their opponent.
• If Amiya runs a campaign attacking Ramya and Ramya runs a campaign focusing on issues, then 10% of the
students who would have otherwise voted for Amiya will vote for Ramya, and another 10% who would have
otherwise voted for Amiya, will not vote at all.
• If Ramya runs a campaign attacking Amiya and Amiya runs a campaign focusing on issues, then 20% of the
students who would have otherwise voted for Ramya will vote for Amiya, and another 5% who would have
otherwise voted for Ramya, will not vote at all.
• If both run campaigns attacking each other, then 10% of the students who would have otherwise voted for
them had they run campaigns focusing on issues, will not vote at all
If both of them run staid campaigns attacking the other, then what percentage of students will vote in the
election?
Video Explanation

What is the minimum percentage of students who will vote in the election?
Video Explanation

If Amiya runs a campaign focusing on issues, then what is the maximum percentage of votes that she can
get?
Video Explanation

If Ramya runs a campaign attacking Amiya, then what is the minimum percentage of votes that she is
guaranteed to get?
Video Explanation

What is the maximum possible voting margin with which one of the candidates can win?
Video Explanation

The game of QUIET is played between two teams. Six teams, numbered 1, 2, 3, 4, 5, and 6, play in a QUIET
tournament. These teams are divided equally into two groups. In the tournament, each team plays every other
team in the same group only once, and each team in the other group exactly twice. The tournament has several
rounds, each of which consists of a few games. Every team plays exactly one game in each round.
The following additional facts are known about the schedule of games in the tournament.
1. Each team played against a team from the other group in Round 8.
2. In Round 4 and Round 7, the match-ups, that is the pair of teams playing against each other, were identical. In
Round 5 and Round 8, the match-ups were identical.
3. Team 4 played Team 6 in both Round 1 and Round 2.
4. Team 1 played Team 5 ONLY once and that was in Round 2.
5. Team 3 played Team 4 in Round 3. Team 1 played Team 6 in Round 6.
6. In Round 8, Team 3 played Team 6, while Team 2 played Team 5.
How many rounds were there in the tournament?
How many rounds were there in the tournament?
Video Explanation

What is the number of the team that played Team 1 in Round 5?
Video Explanation

Which team among the teams numbered 2, 3, 4, and 5 was not part of the same group?
Video Explanation

What is the number of the team that played Team 1 in Round 7?
Video Explanation

What is the number of the team that played Team 6 in Round 3?
Video Explanation

Six web surfers M, N, O, P, X, and Y each had 30 stars which they distributed among four bloggers A, B, C, and D.
The number of stars received by A and B from the six web surfers is shown in the figure below.
The following additional facts are known regarding the number of stars received by the bloggers from the
surfers.
1. The numbers of stars received by the bloggers from the surfers were all multiples of 5 (including 0).
2. The total numbers of stars received by the bloggers were the same.
3. Each blogger received a different number of stars from M.
4. Two surfers gave all their stars to a single blogger.
5. D received more stars than C from Y.
What was the total number of stars received by D?
Video Explanation

What was the number of stars received by D from Y?
Video Explanation

How many surfers distributed their stars among exactly 2 bloggers?
Video Explanation

Which of the following can be determined with certainty?
I. The number of stars received by C from M
II. The number of stars received by D from O
Video Explanation

The chart below shows the price data for seven shares - A, B, C, D, E, F, and G as a candlestick plot for a
particular day. The vertical axis shows the price of the share in rupees. A share whose closing price (price at the
end of the day) is more than its opening price (price at the start of the day) is called a bullish share; otherwise, it
is called a bearish share. All bullish and bearish shares are shown in green and red colour respectively.
Daily loss for a share is defined as (Opening price - Closing price) / (Opening price). Which among the
shares A, B, F and G had the highest daily loss on that day?
Video Explanation

What would have been the percentage wealth gain for a trader, who bought equal numbers of all bullish
shares at opening price and sold them at their day’s high?
Video Explanation

The passage below is accompanied by four questions. Based on the passage, choose the best answer for
each question.
In the summer of 2022, subscribers to the US streaming service HBO MAX were alarmed to discover that
dozens of the platform’s offerings - from the Covid-themed heist thriller Locked Down to the recent remake of
The Witches - had been quietly removed from the service . . . The news seemed like vindication to those who
had long warned that streaming was more about controlling access to the cultural commons than expanding it,
as did reports (since denied by the show’s creators) that Netflix had begun editing old episodes of Stranger
Things to retroactively improve their visual effects.
What’s less clear is whether the commonly prescribed cure for these cultural ills - a return to the material
pleasures of physical media - is the right one. While the makers of Blu-ray discs claim they have a shelf life of
100 years, such statistics remain largely theoretical until they come to pass, and are dependent on storage
conditions, not to mention the continued availability of playback equipment. The humble DVD has already
proved far less resilient, with many early releases already beginning to deteriorate in quality Digital movie
purchases provide ven less security. Any film “bought” on iTunes could disappear if you move to another
territory with a different rights agreement and try to redownload it. It’s a bold new frontier in the
commodification of art: the birth of the product recall. After a man took to Twitter to bemoan losing access to
Cars 2 after moving from Canada to Australia, Apple clarified that users who downloaded films to their devices
would retain permanent access to those downloads, even if they relocated to a hemisphere where the [content
was] subject to a different set of rights agreements. Thanks to the company’s ironclad digital rights
management technology, however, such files cannot be moved or backed up, locking you into watching with
your Apple account.
Anyone who does manage to acquire Digital Rights Management free (DRM-free) copies of their favourite films
must nonetheless grapple with ever-changing file format standards, not to mention data decay - the gradual
process by which electronic information slowly but surely corrupts. Only the regular migration of files from hard
drive to hard drive can delay the inevitable, in a sisyphean battle against the ravages of digital time.
In a sense, none of this is new. Charlie Chaplin burned the negative of his 1926 film A Woman of the Sea as a
tax write-off. Many more films have been lost through accident, negligence or plain indifference. During a
heatwave in July 1937, a Fox film vault in New Jersey burned down, destroying a majority of the silent films
produced by the studio.
Back then, at least, cinema was defined by its ephemerality: the sense that a film was as good as gone once it
left your local cinema. Today, with film studios keen to stress the breadth of their back catalogues (or to put in
Hollywood terms, the value of their IPs), audiences may start to wonder why those same studios seem happy to
set the vault alight themselves if it’ll help next quarter’s numbers.
Which one of the following statements about art best captures the arguments made in the passage?
Video Explanation

Which one of the following statements, if true, would best invalidate the main argument of the passage?
Video Explanation

Which of the following statements is suggested by the sentence “Back then, at least, cinema was defined
by its ephemerality: the sense that a film was as good as gone once it left your local cinema”?
Video Explanation

“Netflix had begun editing old episodes of Stranger Things to retroactively improve their visual effects.”
What is the purpose of this example used in the passage?
Video Explanation

. Five jumbled up sentences (labelled 1, 2, 3, 4 and 5), related to a topic, are given below. Four of them can
be put together to form a coherent paragraph. Identify the odd sentence and key in the number of that
sentence as your answer.
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