Comprehension

Read the information given below to answer the questions.
(i) Mohan‘s reading schedule consists of reading only subject on a given day of the week.
(ii) The subjects are Physics, Chemistry, Mathematics, Biology, and Social Science.
(iii) Monday to Saturday are reading days including one day only for play. Sunday is a complete holiday for Mohan.
(iv) Mathematics day is neither on the first day nor on the last day but earlier than the Chemistry day.
(v) Biology day is on the immediate next day of Chemistry day.
(vi) Physics day is on the immediate previous day of the play day.
(vii) Biology day and Social Science day have a gap of two days between them.
(viii) Social Science day is on the immediate next day of the play day.

Question: 1

Which of the following day is the play day?

Show Hint

When constraints create a fixed three-day block (like Phy–Play–SS), try each candidate day and eliminate by conflicts with “immediate next/previous”, “two-day gap”, and “first/last” conditions.
Updated On: Jul 15, 2026
  • Monday
  • Tuesday
  • Wednesday
  • Thursday
Show Solution

The Correct Option is B

Approach Solution - 1

Step 1: Chain clues (vi) and (viii): Physics, Play, Social Science must occupy three back-to-back days in that order.

Step 2: Since Sunday is off-limits, this block must sit fully within Monday-Saturday; combined with the Chemistry-Biology pairing and the Biology-Social Science two-day gap, the only fit is Physics = Monday, Play = Tuesday, Social Science = Wednesday.

Step 3: Placing Mathematics, Chemistry, Biology in the remaining three days (Thu, Fri, Sat) under clue (iv) gives Mathematics = Thursday, Chemistry = Friday, Biology = Saturday, confirming the block placement is consistent.

Conclusion: Play falls on Tuesday.
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Approach Solution -2

A different way to pin down the play day is to work from the two-day gap between Biology and Social Science first, then check which play day makes that gap possible. Social Science always falls the day right after Play, so each candidate play day fixes where Social Science lands, and from there we can check whether a valid Biology day exists three days away from it. Let's test each option:

  1. Monday: Play on Monday would place Physics on Sunday, a holiday, so this option is invalid before we even reach the gap check.
  2. Tuesday: Play on Tuesday places Social Science on Wednesday. A Biology day exactly three days from Wednesday, going forward within the week, lands on Saturday. Chemistry then sits the day before Biology, on Friday, and Mathematics fits neatly on the one day left over, Thursday, which is neither first nor last and comes before Chemistry. Everything checks out.
  3. Wednesday: Play on Wednesday places Social Science on Thursday. A Biology day three days from Thursday would fall on Sunday, a holiday, or would force Chemistry onto Sunday too, since Chemistry sits the day before Biology, so no valid Biology day exists here.
  4. Thursday: Play on Thursday places Social Science on Friday. A Biology day three days from Friday would force Chemistry onto Sunday, or would require going past Saturday into the next week, so again no valid Biology day exists here.

Only Play on Tuesday allows a Biology day that keeps every other clue, the Chemistry-Biology pairing and the Mathematics restriction, satisfied at the same time.

Therefore, the correct answer is Tuesday.

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Question: 2

Physics day and Biology day have a gap of how many days between them?

Show Hint

When asked for a “gap” in days, exclude both the starting and ending days—count only the days \emph{in between}.
Updated On: Jul 15, 2026
  • One
  • Two
  • Three
  • Four
Show Solution

The Correct Option is D

Approach Solution - 1

Step 1: From the resolved week, Physics = Monday (day 1) and Biology = Saturday (day 6).

Step 2: The gap is the count of days strictly between them: Tuesday, Wednesday, Thursday, Friday.

Step 3: Counting these gives four days in between.
\[ \boxed{4} \]
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Approach Solution -2

A slightly different way to see this is to stop thinking in terms of specific weekday names and instead think of the six subjects purely as an ordered list of six slots: Physics, Play, Social Science, Mathematics, Chemistry, Biology, filling positions 1 through 6 in that fixed order. Physics is always the 1st item in this list, and Biology is always the 6th and final item, regardless of which actual weekday each slot lands on. Let's check each option against this list-position view:

  1. One: A gap of one would mean Biology is the 3rd item in the list, two positions after Physics, but Biology is fixed as the 6th item, so this does not match.
  2. Two: A gap of two would place Biology as the 4th item in the list, still short of its actual 6th position.
  3. Three: A gap of three would place Biology as the 5th item, one position short of where it actually sits.
  4. Four: Counting the items strictly between the 1st position (Physics) and the 6th position (Biology) in this six-item list gives exactly four items, matching the actual gap.

Since Physics is always the first item and Biology is always the last item in this fixed six-slot list, there are always exactly four items, and therefore four days, sitting between them.

Therefore, the correct answer is Four.

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Question: 3

Which day is Social Science day?

Show Hint

When a problem gives “immediate previous/next” for two different subjects centered on the same day, lock that 3-day block first and then test days to eliminate contradictions.
Updated On: Jul 15, 2026
  • Monday
  • Tuesday
  • Wednesday
  • Thursday
Show Solution

The Correct Option is C

Approach Solution - 1

Step 1: Clue (viii) places Social Science directly after the play day.

Step 2: The full week works out to Physics = Monday, Play = Tuesday, so the day right after Play is Wednesday.

Step 3: Cross-checking with the rest of the week (Math = Thursday, Chemistry = Friday, Biology = Saturday) confirms no clue is broken by this placement.

Conclusion: Social Science day is Wednesday.
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Approach Solution -2

Another way to confirm Social Science day is to test each option directly for whether the entire week can still be built around it without breaking any rule, rather than reading it off an already-solved schedule:

  1. Monday: If Social Science were Monday, Play would have to be Sunday, since Social Science always follows Play directly, but Sunday is a complete holiday, so this option collapses immediately.
  2. Tuesday: If Social Science were Tuesday, Play would be Monday, forcing Physics onto Sunday, since Physics always falls the day before Play, which is again impossible.
  3. Wednesday: If Social Science is Wednesday, Play is Tuesday and Physics is Monday, all valid reading days. The remaining Thursday, Friday, Saturday can hold Mathematics, Chemistry, Biology in that order without conflict, and the two-day gap to Biology on Saturday checks out too.
  4. Thursday: If Social Science were Thursday, Play would be Wednesday and Physics Tuesday, leaving Monday, Friday, Saturday for the remaining three subjects. Since Monday is isolated from Friday-Saturday, Chemistry and Biology would have to take Friday-Saturday, forcing Mathematics onto Monday, the first reading day, which directly breaks the rule against Mathematics being first.

Only placing Social Science on Wednesday allows the entire week to be completed without breaking any of the clues.

Therefore, the correct answer is Wednesday.

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Question: 4

Which day is Mathematics day?

Show Hint

After placing the rigid blocks, apply “relative ordering” constraints (earlier than/later than) to anchor the remaining subjects.
Updated On: Jul 15, 2026
  • Monday
  • Tuesday
  • Wednesday
  • Thursday
Show Solution

The Correct Option is D

Approach Solution - 1

Step 1: Monday, Tuesday, and Wednesday are already fixed as Physics, Play, and Social Science respectively, so Mathematics cannot use any of these.

Step 2: Of the remaining days (Thursday, Friday, Saturday), Chemistry must come before Biology (clue v) and Mathematics must come before Chemistry while not being the last day (clue iv), which only works if Mathematics = Thursday, Chemistry = Friday, Biology = Saturday.

Conclusion: Mathematics day is Thursday.
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Approach Solution -2

Another way to confirm this is to check what each candidate day would mean for the two consecutive slots that Chemistry and Biology must occupy among Thursday, Friday, Saturday:

  1. Monday: Monday already belongs to Physics in the fixed opening block, so it is unavailable for Mathematics regardless of the Chemistry-Biology placement.
  2. Tuesday: Tuesday already belongs to the play day in the fixed opening block, leaving no room for Mathematics here either.
  3. Wednesday: Wednesday already belongs to Social Science in the fixed opening block, so this day is also unavailable.
  4. Thursday: If Mathematics is Thursday, Chemistry and Biology must take the remaining Friday-Saturday pair consecutively, which works perfectly and keeps Mathematics before Chemistry while being neither first nor last.

Checking the only other arithmetic possibility, if Chemistry-Biology instead took Thursday-Friday, Mathematics would be pushed to Saturday, the very last reading day, which clue (iv) directly forbids, so that option is eliminated, confirming Thursday as the only workable day for Mathematics.

Therefore, the correct answer is Thursday.

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Question: 5

Which of the following is the correct statement?

Show Hint

When options are declarative, verify each against the completed schedule rather than relying on memory—this prevents day-position slips.
Updated On: Jul 15, 2026
  • Biology day is after Chemistry day
  • Physics day is on Wednesday
  • Play day is on Monday
  • Chemistry day is earlier than Physics day
Show Solution

The Correct Option is A

Approach Solution - 1

Step 1: Lay out the resolved week: Physics = Mon, Play = Tue, Social Science = Wed, Mathematics = Thu, Chemistry = Fri, Biology = Sat.

Step 2: Check each statement against this row: Biology (Sat) after Chemistry (Fri) holds; Physics is Monday not Wednesday; Play is Tuesday not Monday; Chemistry (Fri) is later than Physics (Mon), not earlier.

Conclusion: Only "Biology day is after Chemistry day" is true.
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Approach Solution -2

A quick efficiency check separates these four statements into two groups: one that clue (v) settles instantly, and three that genuinely require the schedule to be built out. Let's work through them in that order:

  1. Biology day is after Chemistry day: Since clue (v) defines Biology's day as the one immediately following Chemistry's day, Biology is guaranteed to be after Chemistry no matter which actual weekday either of them falls on. This statement is true purely by definition, before any schedule-building is needed.
  2. Physics day is on Wednesday: This claim needs the schedule to be built; once Physics, Play, and Social Science are fixed as Monday, Tuesday, Wednesday respectively, the only placement that keeps every other subject's rule satisfiable, Physics turns out to be Monday, not Wednesday, so this fails.
  3. Play day is on Monday: Using the same built schedule, Play falls on Tuesday, immediately after Physics on Monday, not on Monday itself, so this also fails.
  4. Chemistry day is earlier than Physics day: The built schedule places Chemistry on Friday and Physics on Monday, so Chemistry is later in the week than Physics, the reverse of what this statement claims, so it fails too.

Since the first statement is guaranteed true directly by clue (v) alone, while the other three all fail once the schedule is actually built, only the Biology-after-Chemistry statement holds.

Therefore, the correct answer is Biology day is after Chemistry day.

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Top Questions on Logical Puzzle

Questions Asked in CLAT exam

Read the passage and answer the question.

Passage (extract): The work which Gandhiji had taken up was not only regarding the achievement of political freedom but also the establishment of a new social order based on truth and non-violence, unity and peace, equality and universal brotherhood and maximum freedom for all. A new order cannot be established without radically changing the mind and attitude of men towards property and, at some stage or the other, the 'haves' have to yield place to the 'have-nots'. We have seen, in our time, attempts to achieve a kind of egalitarian society and the picture of it after it was achieved. But this was done, by and large, through the use of physical force. It may even be that, like a gas kept confined within containers under great pressure, or water held back by a big dam, once the barrier breaks, the reaction will one day sweep back with a violence equal in extent and intensity to what was used to establish and maintain the outward egalitarian form. This enforced egalitarianism contains, in its bosom, the seed of its own destruction. If egalitarianism is to endure, it has to be based not on the possession of the maximum material goods by a few or by all but on voluntary, enlightened renunciation of those goods which cannot be shared by others or can be enjoyed only at the expense of others.

According to the passage, egalitarianism will not survive if
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Read the passage and answer the question.

Passage (extract): The work which Gandhiji had taken up was not only regarding the achievement of political freedom but also the establishment of a new social order based on truth and non-violence, unity and peace, equality and universal brotherhood and maximum freedom for all. This unfinished part of his experiment was perhaps even more difficult to achieve than the achievement of political freedom. In the political struggle, the fight was against a foreign power and all one could do was either join it or wish it success and give it his/her moral support. In establishing a social order on this pattern, there was a strong possibility of a conflict arising between diverse groups and classes of our own people.

According to the passage, which was the unfinished part of Gandhi's experiment?
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Read the passage and answer the question.

Passage (extract): In the political struggle, the fight was against a foreign power and all one could do was either join it or wish it success and give it his/her moral support. Experience shows that man values his possessions even more than his life because in the former he sees the means for perpetuation and survival of his descendants even after his body is reduced to ashes. We have seen, in our time, attempts to achieve a kind of egalitarian society and the picture of it after it was achieved. But this was done, by and large, through the use of physical force. This enforced egalitarianism contains, in its bosom, the seed of its own destruction. The root cause of class conflict is possessiveness or the acquisitive instinct.

Which of the following statements is 'not true' in the context of the passage?
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