Direction: The likes and professions of five friends Rosy, Mary, Lily, Andy and Daisy are given. Consider the following information and answer questions based on it. 1. Rosy likes Yellow and is a Student. 2. The Librarian likes Green. 3. Mary and Andy like Purple and Blue respectively and neither of them is a Teacher. 4. Lily likes Brown and the Inspector likes Blue. 5. One of the five is a Principal.
Who is the Principal? A. Daisy B. Andy C. Mary D. Lily
C
Solving the Friends' Likes and Professions Puzzle
This question is a logic puzzle where we need to match five friends (Rosy, Mary, Lily, Andy, Daisy) with their favorite colors and professions based on the given clues. We can use a table to organize the information and make deductions.
Step-by-Step Deduction Process
Let's list the friends, their likes (colors), and professions based on the clues:
| Friend | Like (Color) | Profession |
|---|---|---|
| Rosy | ||
| Mary | ||
| Lily | ||
| Andy | ||
| Daisy |
Now, let's fill in the certain information from the clues:
- Clue 1: Rosy likes Yellow and is a Student.
- Clue 3: Mary likes Purple. Andy likes Blue.
- Clue 4: Lily likes Brown.
| Friend | Like (Color) | Profession |
|---|---|---|
| Rosy | Yellow | Student |
| Mary | Purple | |
| Lily | Brown | |
| Andy | Blue | |
| Daisy |
Let's use the clues that link professions and likes:
- Clue 2: The Librarian likes Green.
- Clue 4: The Inspector likes Blue.
From Clue 4, since Andy likes Blue (as per Clue 3), Andy must be the Inspector.
| Friend | Like (Color) | Profession |
|---|---|---|
| Rosy | Yellow | Student |
| Mary | Purple | |
| Lily | Brown | |
| Andy | Blue | Inspector |
| Daisy |
Now consider Clue 2: The Librarian likes Green. Looking at our table, the friends whose colors and professions are not yet fully determined are Mary (Purple), Lily (Brown), and Daisy. None of them currently have Green listed as their like. This means Daisy must be the one who likes Green and is the Librarian.
| Friend | Like (Color) | Profession |
|---|---|---|
| Rosy | Yellow | Student |
| Mary | Purple | |
| Lily | Brown | |
| Andy | Blue | Inspector |
| Daisy | Green | Librarian |
The professions mentioned or implied are Student, Librarian, Inspector, Teacher, and Principal (from Clue 5). The professions we have placed are Student (Rosy), Inspector (Andy), and Librarian (Daisy).
The remaining people are Mary and Lily. The remaining professions are Teacher and Principal.
Let's look at Clue 3 again: Mary and Andy are neither of them a Teacher. We already established Andy is the Inspector. This clue tells us Mary is not a Teacher. Since Mary's profession is one of the remaining two (Teacher or Principal) and she is not the Teacher, she must be the Principal.
This leaves Lily as the remaining person and Teacher as the remaining profession. So, Lily must be the Teacher.
Let's complete the table:
| Friend | Like (Color) | Profession |
|---|---|---|
| Rosy | Yellow | Student |
| Mary | Purple | Principal |
| Lily | Brown | Teacher |
| Andy | Blue | Inspector |
| Daisy | Green | Librarian |
Based on our completed table, Mary is the Principal.
Summary of Findings
- Rosy: Yellow, Student
- Mary: Purple, Principal
- Lily: Brown, Teacher
- Andy: Blue, Inspector
- Daisy: Green, Librarian
Therefore, the person who is the Principal is Mary.
Revision Table: Logic Puzzle Deductions
| Clue | Information Gained | Deduction / Impact |
|---|---|---|
| 1. Rosy likes Yellow and is a Student. | Direct assignment. | Rosy = Yellow, Student |
| 2. The Librarian likes Green. | Links a profession and color. | Librarian <--> Green |
| 3. Mary and Andy like Purple and Blue respectively and neither of them is a Teacher. | Direct color assignments, profession exclusion. | Mary = Purple, Andy = Blue. Mary ≠ Teacher, Andy ≠ Teacher. |
| 4. Lily likes Brown and the Inspector likes Blue. | Direct color assignment, links profession and color. | Lily = Brown. Inspector <--> Blue. Since Andy likes Blue, Andy = Inspector. |
| 5. One of the five is a Principal. | Identifies a key profession. | Principal is one of the five roles. |
| Applying Clue 2 (Librarian <--> Green) | Remaining people/colors: Mary (Purple), Lily (Brown), Daisy (?). Remaining profession is Librarian. | Daisy must like Green and be the Librarian (as Mary and Lily have other colors). |
| Applying Clue 3 (Mary ≠ Teacher) with remaining roles | Remaining roles: Teacher, Principal. Remaining people: Mary, Lily. | Since Mary is not the Teacher, Mary must be the Principal. |
| Final assignment | All others determined. | Lily must be the Teacher. |
Additional Information: Solving Logic Puzzles
Logic puzzles like this require careful reading and organization of information. Here are some tips:
- Read all clues first: Get an overview of the information provided.
- Use a grid or table: This helps visualize relationships and eliminate possibilities. Write down all possibilities and cross them out as you make deductions.
- Look for direct assignments: Start with clues that state a direct link between two attributes (like "Rosy likes Yellow and is a Student").
- Find indirect links: Connect clues. For example, if "X likes color A" and "The Musician likes color A", then X is the Musician.
- Use elimination: If a person cannot be a certain profession or like a certain color based on a clue, eliminate that possibility for them. Similarly, if a profession or color is assigned to one person, eliminate it as a possibility for others.
- Check for contradictions: Ensure your deductions don't conflict with any given clue.
- Systematic approach: Go through the clues one by one, updating your table or grid with each piece of information or deduction.
These methods help break down complex information into manageable steps, leading to the solution.
Important Questions from Double Lineup
A, B, C, D, E, F and G are seven coaches. Each one among them is a coach of a different game. The games are Hockey, Cricket, Badminton, Tennis, Volleyball, Basketball and Football (not necessarily in the same order). Each of them trains on one of the seven days of the week from Monday to Sunday (not necessarily in the same order). No two coaches train on the same day of the week. C trains Badminton on Friday. B teaches Volleyball on the previous day of the day on which a coach trains Hockey. G trains on Sunday but does not train Cricket or Tennis. D trains Basketball on the previous day of the day on which F trains. A trains Football on Tuesday. E does not train Tennis. On which day does F train?
Five students A, B, C, D and E attend five different schools S1, S2, S3, S4 and S5 (not necessarily in the same order). Each also likes a different subject namely D1, D2, D3, D4 and D5 (not necessarily in the same order). A goes to S5 but does not like D3. C likes D4. The one who goes to S1 likes D5. D goes to S3. E does not like D5. The one who goes to S2 likes D1.
Which of the following statement is correct?
I. B likes D5.
II. C goes to S4.
P, Q, R, S, T, V and W are seven members of the family. There are three female members. Each of them has a difference profession-Lawyer, Chartered Accountant (CA), Engineer, Teacher, Doctor, Architect and Pharmacist. No Lady is either a pharmacist or a chartered Accountant. Each of them has a different monthly income. The chartered accountant earns the most. S, the engineer, earns less than V, the doctor. R, the teacher, earns more than P and less than S. W’s wife earns the least. T is an unmarried lady Lawyer and she earns less than P and more than only Q. The pharmacist’s income is not the lowest
Who earns the least?
Which colour does the Teacher like?
A. Blue
B. Brown
C. Purple
D. Green
Which among the following is the wrong pair?
A. Andy - Inspector
B. Purple - Principal
C. Daisy - Green
D. Rosy - Teacher
