UPSC Exam  >  UPSC Questions  >  A, B, C, D, E and F are cousins. No two cousi... Start Learning for Free
A, B, C, D, E and F are cousins. No two cousins are of the same age, but all have birthdays on the same day of the same month. The youngest is 17 years old and the oldest E is 22 years old. F is somewhere between B and D in age. A is older than B. C is older than D. A is one year older than C. 
 
Q. Which one of the following is possible? 
  • a)
    D is 20 years old
  • b)
    F is 18 years old
  • c)
    F is 19 years old
  • d)
    F is 20 years old 
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A, B, C, D, E and F are cousins. No two cousins are of the same age, b...
B is the correct option.
E-22   A-21   C-20   B/D-19   F-18  D/B-17
 
View all questions of this test
Most Upvoted Answer
A, B, C, D, E and F are cousins. No two cousins are of the same age, b...
Given Information:
- Cousins A, B, C, D, E, and F have birthdays on the same day of the same month.
- No two cousins are of the same age.
- The youngest is 17 years old and the oldest E is 22 years old.
- F is somewhere between B and D in age.
- A is older than B.
- C is older than D.
- A is one year older than C.

Possible Age Combinations:
Let's consider the given information to determine the possible age combinations of the cousins. We know that the youngest cousin is 17 years old and the oldest is 22 years old. Therefore, the possible age combinations of the cousins are:
- 17, 18, 19, 20, 21, 22
- 18, 19, 20, 21, 22, 23
- 19, 20, 21, 22, 23, 24

Eliminating Invalid Options:
Let's now consider the given options and eliminate the invalid ones based on the given information.
a) D is 20 years old: This option cannot be true because we know that C is older than D, and A is one year older than C. Therefore, A and D cannot be the same age, and D cannot be 20 years old.
b) F is 18 years old: This option is possible because F is somewhere between B and D in age, and the age combination of 17, 18, 19, 20, 21, 22 includes the age of 18.
c) F is 19 years old: This option cannot be true because we know that F is somewhere between B and D in age, and if F is 19 years old, then B and D must be 18 and 20 years old, but this is not possible because C is older than D, and A is older than B.
d) F is 20 years old: This option cannot be true because we know that F is somewhere between B and D in age, and if F is 20 years old, then B and D must be 19 and 21 years old, but this is not possible because C is older than D, and A is older than B.

Therefore, the only possible option is b) F is 18 years old.
Free Test
Community Answer
A, B, C, D, E and F are cousins. No two cousins are of the same age, b...
The only two orders possible are B F D C A E or D F B C A E. making F 18 years old since the youngest is 17 years old.
Explore Courses for UPSC exam

Similar UPSC Doubts

Top Courses for UPSC

A, B, C, D, E and F are cousins. No two cousins are of the same age, but all have birthdays on the same day of the same month. The youngest is 17 years old and the oldest E is 22 years old. F is somewhere between B and D in age. A is older than B. C is older than D. A is one year older than C.Q. Which one of the following is possible?a)D is 20 years oldb)F is 18 years oldc)F is 19 years oldd)F is 20 years oldCorrect answer is option 'B'. Can you explain this answer?
Question Description
A, B, C, D, E and F are cousins. No two cousins are of the same age, but all have birthdays on the same day of the same month. The youngest is 17 years old and the oldest E is 22 years old. F is somewhere between B and D in age. A is older than B. C is older than D. A is one year older than C.Q. Which one of the following is possible?a)D is 20 years oldb)F is 18 years oldc)F is 19 years oldd)F is 20 years oldCorrect answer is option 'B'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about A, B, C, D, E and F are cousins. No two cousins are of the same age, but all have birthdays on the same day of the same month. The youngest is 17 years old and the oldest E is 22 years old. F is somewhere between B and D in age. A is older than B. C is older than D. A is one year older than C.Q. Which one of the following is possible?a)D is 20 years oldb)F is 18 years oldc)F is 19 years oldd)F is 20 years oldCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A, B, C, D, E and F are cousins. No two cousins are of the same age, but all have birthdays on the same day of the same month. The youngest is 17 years old and the oldest E is 22 years old. F is somewhere between B and D in age. A is older than B. C is older than D. A is one year older than C.Q. Which one of the following is possible?a)D is 20 years oldb)F is 18 years oldc)F is 19 years oldd)F is 20 years oldCorrect answer is option 'B'. Can you explain this answer?.
Solutions for A, B, C, D, E and F are cousins. No two cousins are of the same age, but all have birthdays on the same day of the same month. The youngest is 17 years old and the oldest E is 22 years old. F is somewhere between B and D in age. A is older than B. C is older than D. A is one year older than C.Q. Which one of the following is possible?a)D is 20 years oldb)F is 18 years oldc)F is 19 years oldd)F is 20 years oldCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC. Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free.
Here you can find the meaning of A, B, C, D, E and F are cousins. No two cousins are of the same age, but all have birthdays on the same day of the same month. The youngest is 17 years old and the oldest E is 22 years old. F is somewhere between B and D in age. A is older than B. C is older than D. A is one year older than C.Q. Which one of the following is possible?a)D is 20 years oldb)F is 18 years oldc)F is 19 years oldd)F is 20 years oldCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A, B, C, D, E and F are cousins. No two cousins are of the same age, but all have birthdays on the same day of the same month. The youngest is 17 years old and the oldest E is 22 years old. F is somewhere between B and D in age. A is older than B. C is older than D. A is one year older than C.Q. Which one of the following is possible?a)D is 20 years oldb)F is 18 years oldc)F is 19 years oldd)F is 20 years oldCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for A, B, C, D, E and F are cousins. No two cousins are of the same age, but all have birthdays on the same day of the same month. The youngest is 17 years old and the oldest E is 22 years old. F is somewhere between B and D in age. A is older than B. C is older than D. A is one year older than C.Q. Which one of the following is possible?a)D is 20 years oldb)F is 18 years oldc)F is 19 years oldd)F is 20 years oldCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of A, B, C, D, E and F are cousins. No two cousins are of the same age, but all have birthdays on the same day of the same month. The youngest is 17 years old and the oldest E is 22 years old. F is somewhere between B and D in age. A is older than B. C is older than D. A is one year older than C.Q. Which one of the following is possible?a)D is 20 years oldb)F is 18 years oldc)F is 19 years oldd)F is 20 years oldCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A, B, C, D, E and F are cousins. No two cousins are of the same age, but all have birthdays on the same day of the same month. The youngest is 17 years old and the oldest E is 22 years old. F is somewhere between B and D in age. A is older than B. C is older than D. A is one year older than C.Q. Which one of the following is possible?a)D is 20 years oldb)F is 18 years oldc)F is 19 years oldd)F is 20 years oldCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice UPSC tests.
Explore Courses for UPSC exam

Top Courses for UPSC

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev