Quant Exam > Quant Questions > The average age of a family of 6 members is 2...
Start Learning for Free
The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years, then what was the average age of the family at the birth of the youngest member?
- a)15
- b)18
- c)28
- d)24
- e)None of these
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
The average age of a family of 6 members is 22 years. If the age of th...
Answer – B (18) Explanation – Total age of all members = 6 x 22 = 132 years 7 years ago, total sum of ages = 132 – (6 x 7) = 90 years But at that time there were 5 members in the family Average at that time = 90 /5 = 18 years
Most Upvoted Answer
The average age of a family of 6 members is 22 years. If the age of th...
Given:
- Average age of a family of 6 members = 22 years
- Age of the youngest member = 7 years
To find: Average age of the family at the birth of the youngest member
Solution:
Let's assume that the sum of the ages of all the family members at present is S.
Then, S/6 = 22 (as the average age of the family is 22)
S = 6 × 22
S = 132
Now, let's assume that the sum of the ages of all the family members at the time of the birth of the youngest member was S'.
Since the youngest member is currently 7 years old, the age gap between the present and the time of birth of the youngest member is (22 - 7) = 15 years.
Therefore, S' = S - 15 (as the total sum of ages would have been lesser by 15 years at the time of the birth of the youngest member)
S' = 132 - 15
S' = 117
Now, let's find the average age of the family at the time of the birth of the youngest member.
Average age = S'/6
Average age = 117/6
Average age = 19.5 years
Therefore, the average age of the family at the birth of the youngest member was 19.5 years, which is option (B).
- Average age of a family of 6 members = 22 years
- Age of the youngest member = 7 years
To find: Average age of the family at the birth of the youngest member
Solution:
Let's assume that the sum of the ages of all the family members at present is S.
Then, S/6 = 22 (as the average age of the family is 22)
S = 6 × 22
S = 132
Now, let's assume that the sum of the ages of all the family members at the time of the birth of the youngest member was S'.
Since the youngest member is currently 7 years old, the age gap between the present and the time of birth of the youngest member is (22 - 7) = 15 years.
Therefore, S' = S - 15 (as the total sum of ages would have been lesser by 15 years at the time of the birth of the youngest member)
S' = 132 - 15
S' = 117
Now, let's find the average age of the family at the time of the birth of the youngest member.
Average age = S'/6
Average age = 117/6
Average age = 19.5 years
Therefore, the average age of the family at the birth of the youngest member was 19.5 years, which is option (B).
Free Test
FREE
| Start Free Test |
Community Answer
The average age of a family of 6 members is 22 years. If the age of th...
Total age =6*22=132
at the time of youngest member's birth
total age =132-6*7=90
now average age at the time of youngest member's birth = 90/6=15
at the time of youngest member's birth
total age =132-6*7=90
now average age at the time of youngest member's birth = 90/6=15
|
Explore Courses for Quant exam
|
|
Similar Quant Doubts
The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years, then what was the average age of the family at the birth of the youngest member?a)15b)18c)28d)24e)None of theseCorrect answer is option 'B'. Can you explain this answer?
Question Description
The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years, then what was the average age of the family at the birth of the youngest member?a)15b)18c)28d)24e)None of theseCorrect answer is option 'B'. Can you explain this answer? for Quant 2024 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years, then what was the average age of the family at the birth of the youngest member?a)15b)18c)28d)24e)None of theseCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Quant 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years, then what was the average age of the family at the birth of the youngest member?a)15b)18c)28d)24e)None of theseCorrect answer is option 'B'. Can you explain this answer?.
The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years, then what was the average age of the family at the birth of the youngest member?a)15b)18c)28d)24e)None of theseCorrect answer is option 'B'. Can you explain this answer? for Quant 2024 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years, then what was the average age of the family at the birth of the youngest member?a)15b)18c)28d)24e)None of theseCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Quant 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years, then what was the average age of the family at the birth of the youngest member?a)15b)18c)28d)24e)None of theseCorrect answer is option 'B'. Can you explain this answer?.
Solutions for The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years, then what was the average age of the family at the birth of the youngest member?a)15b)18c)28d)24e)None of theseCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Quant.
Download more important topics, notes, lectures and mock test series for Quant Exam by signing up for free.
Here you can find the meaning of The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years, then what was the average age of the family at the birth of the youngest member?a)15b)18c)28d)24e)None of theseCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years, then what was the average age of the family at the birth of the youngest member?a)15b)18c)28d)24e)None of theseCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years, then what was the average age of the family at the birth of the youngest member?a)15b)18c)28d)24e)None of theseCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years, then what was the average age of the family at the birth of the youngest member?a)15b)18c)28d)24e)None of theseCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years, then what was the average age of the family at the birth of the youngest member?a)15b)18c)28d)24e)None of theseCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Quant tests.
|
|
Explore Courses for Quant exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup