Given below is a statement followed by two conclusion numbered I and II. You have to assume everything in the statement to be true, even if it appears at variance from commonly known facts. Then consider the two conclusions together and decide which of them information given in the statement. Statement: A research found that if high school students get eight hours of sleep instead of 6 hours before exam, then their marks improve by 20% Conclusions: I. Eight hours of sleep is better than six hours of sleep if a student wants better marks. II. Student are stressed as all exams are tough.
Only conclusion I follows
Analyzing the Statement and Conclusions
The question provides a statement followed by two conclusions. We need to evaluate which of these conclusions logically follow from the information given in the statement, assuming the statement is entirely true.
Understanding the Statement
The statement presents a research finding related to high school students, sleep, and exam performance:
- Statement: A research found that if high school students get eight hours of sleep instead of 6 hours before exam, then their marks improve by 20%.
This statement establishes a cause-and-effect relationship, or at least a strong correlation, specifically for high school students before an exam. Getting 8 hours of sleep is associated with better marks (a 20% improvement) compared to getting only 6 hours of sleep.
Evaluating Conclusion I
- Conclusion I: Eight hours of sleep is better than six hours of sleep if a student wants better marks.
Let's compare this conclusion with the statement:
- The statement says 8 hours of sleep instead of 6 hours improves marks by 20%.
- Conclusion I says 8 hours is better than 6 hours if a student wants better marks.
The statement explicitly provides evidence that getting 8 hours of sleep results in better marks (specifically, a 20% improvement) compared to 6 hours. Therefore, based on the statement, for a student aiming for better marks, 8 hours of sleep is indeed shown to be better than 6 hours. Conclusion I is a direct and logical inference from the information provided in the statement.
Evaluating Conclusion II
- Conclusion II: Student are stressed as all exams are tough.
Now, let's compare this conclusion with the statement:
- The statement talks about the effect of sleep duration (8 vs 6 hours) on exam marks.
- The statement does not mention anything about students' stress levels.
- The statement does not mention whether exams are tough or not.
Conclusion II introduces information (student stress, toughness of exams) that is completely outside the scope of the given statement. The statement provides no basis or evidence to support the claims made in Conclusion II. Therefore, Conclusion II does not follow from the statement.
Determining Which Conclusions Follow
Based on the analysis:
- Conclusion I logically follows from the statement.
- Conclusion II does not follow from the statement.
Thus, only Conclusion I follows.
Choosing the Correct Option
The option that states only Conclusion I follows is the correct one.
Let's look at the given options:
- Only conclusion II follows: Incorrect, as Conclusion II does not follow.
- Neither conclusion I nor II follows: Incorrect, as Conclusion I follows.
- Only conclusion I follows: Correct, as only Conclusion I is a valid inference.
- Both conclusions I and II follow: Incorrect, as Conclusion II does not follow.
| Conclusion | Does it Follow? | Reasoning |
|---|---|---|
| I. Eight hours of sleep is better than six hours of sleep if a student wants better marks. | Yes | Directly supported by the statement which shows 8 hours leads to 20% improvement over 6 hours. |
| II. Student are stressed as all exams are tough. | No | The statement provides no information about student stress or exam difficulty. |
Revision Table: Statement and Conclusion Analysis
| Concept | Key Point | Application Here |
|---|---|---|
| Statement & Conclusion | Assess logical relationship between statement (assumed true) and conclusions. | Checking if conclusions are necessary inferences from the given statement only. |
| Following from Statement | Conclusion must be solely based on the information in the statement. | Conclusion I directly reflects the sleep-marks relationship shown. Conclusion II introduces external ideas. |
| Scope of Statement | Only use facts given in the statement, even if they contradict common knowledge. | Focus only on the finding about sleep hours and marks improvement for high school students before exams. |
Additional Information: Drawing Inferences
In statement and conclusion type questions, the key is to strictly adhere to the information given in the statement. You should not use your prior knowledge, beliefs, or general facts to evaluate the conclusions. A conclusion 'follows' if it is necessarily true based *only* on the statement provided.
- A valid conclusion is an inference that can be drawn directly and logically from the statement.
- If a conclusion introduces new information or makes assumptions not present in the statement, it does not follow.
- Even if a conclusion seems factually correct in the real world, it only follows in the context of the question if the statement supports it.
In this specific problem, the statement provides a clear link between more sleep (8 vs 6 hours) and better marks. Conclusion I simply restates this finding in terms of one being 'better' than the other for a specific goal (better marks), which is a valid inference. Conclusion II, about stress and tough exams, is entirely unsupported by the statement and therefore does not follow.
Similar Questions
Consider the given question and decide which of the following statements is sufficient to answer the question.
How long will X take to build the wall?
Statements:
1. X and Y together can build the wall in 8 days.
2. X takes 5 days more than Y to build the wall.
Read the given statements and conclusions carefully. You have to take the given statements to be true even if they seem to be at variance from commonly known facts and decide which conclusion(s) logically follow(s) from the given statements.
Statements:
All clothes are rings.
No cloth is a bottle.
Conclusions:
(I) Some rings are bottles.
(II) Some rings are clothes.
Read the given statements and conclusions carefully. You have to take the given statements to be true even if they seem to be at variance from commonly known facts and decide which conclusion(s) logically follow(s) from the given statements.
Statements:
All engines are rockets.
All planes are rockets.
Conclusions:
(I) Some engines are planes.
(II) All planes are engines.
Read the given statements and conclusions carefully. You have to take the given statements to be true even if they seem to be at variance from commonly known facts and decide which conclusion(s) logically follow(s) from the given statements.
Statements:
Some snakes are lizards.
All roosters are lizards.
Conclusions:
(I) All lizards are roosters.
(II) No roosters are snakes.
Read the given statements and conclusions carefully. You have to take the given statements to be true even if they seem to be at variance from commonly known facts and decide which conclusion(s) logically follow(s) from the given statements.
Statements:
No horses are mirrors.
Some lizards are horses.
Conclusions:
(I) Some horses are not lizards.
(II) Some lizards are not mirrors.
Read the given statements and conclusions carefully. You have to take the given statements to be true even if they seem to be at variance from commonly known facts and decide which conclusion(s) logically follow(s) from the given statements.
Statements:
Some ribbons are balloons.
Some balloons are eagles.
Conclusions:
(I) All eagles are ribbons.
(II) No ribbons are eagles.
Read the given statements and conclusions carefully. You have to take the given statements to be true even if they seem to be at variance from commonly known facts and decide which conclusion(s) logically follow(s) from the given statements.
Statements:
Some trees are flowers.
All flowers are leaves.
Conclusions:
(I) All leaves are trees.
(II) All flowers are trees.
Decide which of the conclusions logically follow(s) from the information given in the statement.
Statements:
Poverty is increasing because politicians don’t understand poverty, nor do they know anything about the problems faced by the poor.
Conclusions:
- All politicians should be replaced.
- All politicians should be asked to live in poor conditions.
Consider the given statement to be true and decide which of the conclusion(s) logically follow(s) from the statement.
Statement:
Weight is also a force.
Conclusions:
1. The unit of weight is Newton.
2. The unit of weight is Kilogram.Which of the following options correctly describes the given statement?
Statement:
There are four rooks in a game of chess.
Important Questions from Statements and Conclusions
In the following question below are given some statements followed by some conclusions based on those statements. Taking the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusion logically follows the given statements.
Statements:
I. All A are B.
II. Some B are C.
Conclusions:
I. Some A are C.
II. Some A are not C.
III. Some A are B.
Read the given statements and conclusions carefully and decide which of the given conclusions logically follows from the given statements.
Statement:
A asked C, "What time is it now?" Is it half past two? ''
Conclusions:
1. A wants to go to lunch.
2. A wants to confirm what the time is because his watch is off.
In the question one statement is given, followed by two conclusions, I and II. You have to consider the statements to be true even if it seems to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.
Statement : 55% of Manisha's office colleagues went to watch the movie.
Conclusion I : Manisha went to watch the movie.
Conclusion II : Manisha did not go to watch the movie.
In the question two statements are given, followed by two conclusions, I and II. You have to consider the statements to be true even if it seems to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.
Statement 1 : All schools are books.
Statement 2 : No books are papers.
Conclusion I : No schools are books.
Conclusion II : Some books are schools.
In the question below are given some statements followed by some conclusions based on those statements. Take the given statements to be true even if they seem to be different from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements.
Statements:
I. Some P are Q.
II. All P are N.
Conclusion:
I. All Q are N.
II. Some P are not Q.
