Q1-4. Directions: Study the following information carefully and answer the questions given below:
A, B, C, D, E, F, G and H are eight friends who live in an eight-story building. The ground floor is numbered one and the topmost floor is numbered eight. Each of them studies different subjects, viz MATHS, CHEMISTRY, PHYSICS, BIOLOGY, ENGLISH, HISTORY, CIVICS and GEOGRAPHY, but not necessarily in the same order. There is only one floor between A and the floor on which the one who study GEOGRAPHY lives. The person who study GEOGRAPHY does not live on floor number 1. D lives just below B. The one who study MATHS lives on an even-numbered floor and just above the floor on which the one who study ENGLISH lives. The person who study HISTORY lives on an even-numbered floor but not on the 8th floor. Neither D nor H lives on the 1st floor. Only one person lives between the one who study CIVICS and D. A lives on an odd-numbered floor and E lives just above A. B lives on the fourth floor.
Only two persons live between the person who study HISTORY and A. F lives just below the one who study ENGLISH. D study neither ENGLISH nor GEOGRAPHY. One who study Physics does not live on an odd-numbered floor. G does not study CHEMISTRY. There are two floors between the floor on which H lives and the floor on which E lives. Only two persons live between the one who study BIOLOGY and the one who PHYSICS .
1. Who among the following study CHEMISTRY?
(a) D
(b) C
(c) F
(d) E
(e) None of the above
EXPLANATION
Answer: B
2. How many persons are there between E and B?
(a) One
(b) Two
(c) Three
(d) Four
(e) None of the above
EXPLANATION
Answer: C
3. Who among the following lives on the topmost floor?
(a) The one who study MATHS
(b) The one who study HISTORY
(c) The one who study PHYSICS
(d) The one who study CHEMISTRY
(e) None of the above
EXPLANATION
Answer: A
4. Which of the following combinations is/are true?
(a) Floor no. 2 – D – BIOLOGY
(b) Floor no. 5 – F – GEOGRAPHY
(c) Floor no. 1 – C – CHEMISTRY
(d) Floor no. 8 – E – MATHS
(e) None of the above
EXPLANATION
Answer: D
Q5-9. Directions: Read the given information carefully and answer the questions given beside:
Eight people Aarush, Bindu, Chunnu, Divya, Etti, Prithvi, Gopal and Harish live in an eight storey building, but not necessarily in the same order. The lowermost floor is numbered 1 and the topmost floor is numbered 8.
Aarush lives on an even-numbered floor but not on the floor numbered second or fourth. Only three floors are there between Aarush and Bindu. Only two people live between Chunnu and Etti. Prithvi lives on a floor above Divya. There are equal numbers of floors between the floors on which Etti and Bindu live and between the floors on which Aarush and Etti live. Harish lives immediately below Divya’s floor. Gopal lives immediately below Aarush’s floor.
5. Prithvi lives on which of the following floors?
(A) Third
(B) Fifth
(C) Sixth
(D) Second
(E) None of these
EXPLANATION
Correct Option:
BPrithvi lives on fifth floor.
Option B, is hence the correct answer.
Final table:
| Floor Number | Person |
| 8 | Aarush |
| 7 | Gopal |
| 6 | Etti |
| 5 | Prithvi |
| 4 | Bindu |
| 3 | Chunnu |
| 2 | Divya |
| 1 | Harish |
Common explanation:
Reference:
Aarush lives on an even-numbered floor but not on the floor numbered second or fourth.
Only three floors are there between Aarush and Bindu.
Gopal lives immediately below Aarush’s floor.
Inference:
| Floor Number | Case 1 | Case 2 | Hint |
| Person | Person | ||
| 8 | Aarush | ||
| 7 | Gopal | ||
| 6 | Aarush | ||
| 5 | Gopal | ||
| 4 | Bindu | Aarush – × | |
| 3 | |||
| 2 | Bindu | Aarush – × | |
| 1 |
Reference:
There are equal numbers of floors between the floors on which Etti and Bindu live and between the floors on which Aarush and Etti live.
Only two people live between Chunnu and Etti.
Inference: Here, Case 1 splits into two more cases:
| Floor Number | Case 1A | Case 1B | Case 2 | Hint |
| Person | Person | Person | ||
| 8 | Aarush | |||
| 7 | Chunnu | Gopal | ||
| 6 | Aarush | Aarush | Etti | |
| 5 | Gopal | Gopal | ||
| 4 | Etti | Etti | Bindu | |
| 3 | Chunnu | |||
| 2 | Bindu | Bindu | ||
| 1 | Chunnu |
Reference:
Harish lives immediately below Divya’s floor.
Prithvi lives on a floor above Divya.
Inference:
| Floor Number | Case 1A | Case 1B | Case 2 | Hint |
| Person | Person | Person | ||
| 8 | Aarush | |||
| 7 | Chunnu | Gopal | ||
| 6 | Aarush | Aarush | Etti | |
| 5 | Gopal | Gopal | ||
| 4 | Etti | Etti | Bindu | |
| 3 | Chunnu | |||
| 2 | Bindu | Bindu | ||
| 1 | Chunnu |
Case 1 A fails here as there is no such place to accomodate Harish and Divya.
| Floor Number | Case 1B | Case 2 |
| Person | Person | |
| 8 | Divya | Aarush |
| 7 | Harish | Gopal |
| 6 | Aarush | Etti |
| 5 | Gopal | |
| 4 | Etti | Bindu |
| 3 | Chunnu | |
| 2 | Bindu | Divya |
| 1 | Chunnu | Harish |
Case 1 B fails here as it violates the second condition where Prithvi lives on the floor above Divya.
Thus, we get case 2 as our final arrangement.
| Floor Number | Case 2 |
| Person | |
| 8 | Aarush |
| 7 | Gopal |
| 6 | Etti |
| 5 | Prithvi |
| 4 | Bindu |
| 3 | Chunnu |
| 2 | Divya |
| 1 | Harish |
6. How many floors are there between Bindu and Divya?
(A) Five
(B) One
(C) Two
(D) Three
(E) None of these
EXPLANATION
Correct Option: B.
There is only one floor between Bindu and Divya.
Option B, is hence the correct answer.
7. Who among the following lives on the first floor?
(A) Harish
(B) Chunnu
(C) Prithvi
(D) Etti
(E) None of these
EXPLANATION
Correct Option: A.
Harish Lives on the first floor.
Option A, is hence the correct answer.
8. Who among the following lives on the seventh floor?
(A) Etti
(B) Prithvi
(C) Gopal
(D) Chunnu
(E) None of these
EXPLANATION
Correct Option: C
Gopal lives on the seventh floor.
Option C, is hence the correct answer.
9. Which of the following statements is/are true?
(A) Aarush lives on the sixth floor.
(B) Divya lives on the topmost floor.
(C) There are two people between Prithvi and Chunnu.
(D) Harish lives just above Aarush.
(E) Chunnu lives on the third floor.
EXPLANATION
Correct Option: E
Chunnu lives on the third floor – is the only true statement.
Option E, is hence the correct answer.
