1. The following questions are based on the information given below: (i). Seven books are placed one above the other in a particular way. (ii). History book is placed exactly above Civics book. (iii). Geography book is fourth from the bottom and English book
Given clues:
History is just above Civics.
Geography is 4th from the bottom.
English is 5th from the top (3rd from the bottom).
Two books are between Civics and Economics.
Placing books from bottom to top:
Position 1: ?
Position 2: Economics
Position 3: English
Position 4: Geography
Position 5: Civics
Position 6: History
Position 7: ?
Books above English:
Geography (4th position)
Civics (5th position)
History (6th position)
Answer: History, Civics, and Geography (No extra information needed).
2. In a pile of 10 books, there are 3 of History, 2 of Mathematics and 2 of English. Taking from above, there is an English book between a History and Mathematics book, a History book between a Mathematics and an English book, a Hindi book between an English
Clue 1: "English is between History and Mathematics" → H, E, M
Clue 2: "History is between Mathematics and English" → H, E, M, H, E
Clue 3: "Hindi is between English and Mathematics" → H, E, M, H, E, Hi, M
Clue 4: "Two Hindi books are between Mathematics and History" → H, E, M, H, E, Hi, M, Hi, Hi, H
So, after following all the clues, the Hindi book is at the 6th position.
Answer: Hindi.
3. In a pile of 10 books, there are 3 of History, 2 of Mathematics and 2 of English. Taking from above, there is an English book between a History and Mathematics book, a History book between a Mathematics and an English book, a Hindi book between an English
Let's analyze the given options:
Option A states that the Civics book is before two books above the Economics book. This only provides a relationship between Civics and Economics, which does not directly help in finding the position of Science. So, this option is not useful.
Option B mentions that there is one book between English and Science. This provides a direct clue about Science’s placement in the sequence, which can be useful in arranging the books and finding the answer.
Option C states that there are two books between Mathematics and Geography. This only helps in arranging Mathematics and Geography but does not contribute to locating Civics or Science.
Option D tells us that there are two books between Geography and Science. While it helps in placing Science in relation to Geography, it does not directly give us information about Civics.
Ans: Option B (There is one book between English and Science) provides the most useful information for determining the number of books between Civics and Science. It helps in understanding the book arrangement, making it the correct choice. ✅
4. In a pile of 10 books, there are 3 of History, 2 of Mathematics and 2 of English. Taking from above, there is an English book between a History and Mathematics book, a History book between a Mathematics and an English book, a Hindi book between an English
The given options:
Option A: The Civics book is before two books above the Economics book.
This tells us the position of Civics relative to Economics, but it does not help in finding the Science book’s position. Not useful.
Option B: There is one book between English and Science books.
This provides a direct relationship between English and Science, which helps determine Science’s position. Useful. ✅
Option C: There are two books between Mathematics and Geography books.
This only helps in arranging Mathematics and Geography, not Civics or Science. Not useful.
Option D: There are two books between Geography and Science books.
This gives Science’s position relative to Geography, which may help indirectly, but it’s not the best clue for Civics.
Ans: Option B because it helps locate Science’s position more clearly. ✅
5. In a pile of 10 books, there are 3 of History, 2 of Mathematics and 2 of English. Taking from above, there is an English book between a History and Mathematics book, a History book between a Mathematics and an English book, a Hindi book between an English
Let's analyze each option:
Option (A): "The Civics book is before two books above the Economics book."
This gives the position of Civics relative to Economics but does not directly help find Science’s position. Not useful.
Option (B): "There is one book between English and Science books."
This provides a direct clue about Science’s placement. Useful. ✅
Option (C): "There are two books between Mathematics and Geography books."
This helps arrange Mathematics and Geography but does not directly assist in locating Civics or Science. Not useful.
Option (D): "There are two books between Geography and Science books."
This gives Science’s position relative to Geography, which might help indirectly. Partially useful.
Ans: Option B because it directly helps locate Science’s position. ✅
6. Study the given information carefully and answer the questions that follow :
i. Eleven students A, B, C, D, E, F, G, H, I, J and K are sitting in the first row of the
class facing the teacher.
ii. D who is to the immediate left of F is second to the r
We arrange 11 students in a row based on the given clues.
Key positions:
E is at one end.
A is second to the right of E.
D is second to the right of C and to the immediate left of F.
J is to the immediate left of D and third to the right of I.
H is also to the immediate left of D and third to the right of I.
After arranging them, we check the given options.
Option C ("B is sitting between J and I") is correct.
7. Study the given information carefully and answer the questions that follow :
i. Eleven students A, B, C, D, E, F, G, H, I, J and K are sitting in the first row of the class facing the teacher.
ii. D who is to the immediate left of F is second to the r
Given conditions:
D is to the immediate left of F and second to the right of C:
This gives us the relative order: C D F.
A is second to the right of E, who is at one of the ends:
E must be at either extreme (left or right). So, E A is the pattern.
J is the immediate left of D and third to the right of I:
From this, we get I J D. Also, J is to the immediate left of D.
H is to the left of D and third to the right of I:
So, the positions of I H D are set.
Combining all information:
From these conditions, the sequence we get is:
E, K, A, J, B, I, G, C, H, D, F.
Now, let’s answer the question:
The question asks, which group of friends is sitting to the right of G.
From the final seating arrangement E, K, A, J, B, I, G, C, H, D, F, we see that C, H, D, F are sitting immediately to the right of G.
So, the correct answer is:
(A) CHDF.
8. Study the given information carefully and answer the questions that follow :
i. Eleven students A, B, C, D, E, F, G, H, I, J and K are sitting in the first row of the class facing the teacher.
ii. D who is to the immediate left of F is second to the
Explanation of the seating:
Statement ii: D is to the immediate left of F and second to the right of C. This gives us a sequence: C D F.
Statement iii: A is second to the right of E, who is at one of the ends. This gives us: E A at one end, and A is second to the right of E.
Statement iv: J is the immediate left of D and third to the right of I. This gives us: I H D (H is to the immediate left of D and third to the right of I).
Statement v: H is to the left of D and third to the right of I, which further confirms the positioning.
After combining these orders, the complete arrangement becomes: E, K, A, J, B, I, G, C, H, D, F
Answering the question:
All the given statements are indeed needed to deduce the correct seating order, which means none of them are superfluous.
Conclusion:
All the statements are necessary, and therefore the correct answer is (D) None is superfluous.
9. Study the given information carefully and answer the questions that follow :
i. Eleven students A, B, C, D, E, F, G, H, I, J and K are sitting in the first row of the class facing the teacher.
ii. D who is to the immediate left of F is second to the r
Original Sequence (as derived from the clues): E, K, A, J, B, I, G, C, H, D, F
After Interchanging the Positions:
E and D interchange: D, K, A, J, B, I, G, C, H, E, F
C and B interchange: D, K, A, J, C, I, G, B, H, E, F
A and H interchange: D, K, H, J, C, I, G, B, A, E, F
K and F interchange: D, F, H, J, C, I, G, B, A, E, K
Final Sequence:
D, F, H, J, C, I, G, B, A, E, K
Identifying the Students at the Ends:
In the new sequence, D is at the left end and K is at the right end.
Thus, the pair of students sitting at the ends is D and K.
Answer: (A) D and K.
10. Study the given information carefully and answer the questions that follow :
i. Eleven students A, B, C, D, E, F, G, H, I, J and K are sitting in the first row of the class facing the teacher.
ii. D who is to the immediate left of F is second to the
The order is determined step-by-step based on the clues:
Clue 1: D is to the immediate left of F and second to the right of C → C D F.
Clue 2: A is second to the right of E, and E is at one of the ends → E A.
Clue 3: J is immediate left of D and third to the right of I → A J B G.
Clue 4: H is immediate left of D and third to the right of I → I H D.
Arranging them together: Combining these clues, the final order of students is: E, K, A, J, B, I, G, C, H, D, F.
The middle position in this 11-student row is the 6th position, which is I.
So, I is in the middle.
Ans: (D) I.