Railways Exam  >  Railways Questions  >   Average age of 6 boys is 14 years. The avera... Start Learning for Free
Average age of 6 boys is 14 years. The average age of 11 girls is 12 years. What is the average age (in years) of all boys and girls?
  • a)
    12.7
  • b)
    14.6
  • c)
    19.3
  • d)
    8.5
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Average age of 6 boys is 14 years. The average age of 11 girls is 12 ...
Average of 6 boys = Sum of the age of 6 boys/6
⇒ 14 = sum of ages of 6 boys/6
⇒ Sum of the age of 6 boys = 84
Now,
Average of 11 girls = sum of age of 11 girls/11
⇒ 12 = sum of age of 11 girls/11
⇒ Sum of the age of 11 girls = 132
Now,
Sum of age of all girls and boys together = 84 + 132 = 216
∴ Average = 216/17 = 12.7
View all questions of this test
Most Upvoted Answer
Average age of 6 boys is 14 years. The average age of 11 girls is 12 ...
Given information:
- Average age of 6 boys is 14 years.
- Average age of 11 girls is 12 years.

To find:
- Average age of all boys and girls.

Let's calculate the total age of boys and girls separately and then find the average.

Total age of boys:
- The average age of 6 boys is 14 years.
- Therefore, the total age of 6 boys = 14 * 6 = 84 years.

Total age of girls:
- The average age of 11 girls is 12 years.
- Therefore, the total age of 11 girls = 12 * 11 = 132 years.

Total age of all boys and girls:
- Total age = Total age of boys + Total age of girls
- Total age = 84 + 132 = 216 years.

Total number of boys and girls:
- Total number of boys = 6
- Total number of girls = 11
- Total number of boys and girls = 6 + 11 = 17.

Average age of all boys and girls:
- Average age = Total age / Total number of boys and girls
- Average age = 216 / 17 ≈ 12.7 years.

Therefore, the average age of all boys and girls is approximately 12.7 years. Hence, option A is the correct answer.
Explore Courses for Railways exam
Average age of 6 boys is 14 years. The average age of 11 girls is 12 years. What is the average age (in years) of all boys and girls?a)12.7b)14.6c)19.3d)8.5Correct answer is option 'A'. Can you explain this answer?
Question Description
Average age of 6 boys is 14 years. The average age of 11 girls is 12 years. What is the average age (in years) of all boys and girls?a)12.7b)14.6c)19.3d)8.5Correct answer is option 'A'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about Average age of 6 boys is 14 years. The average age of 11 girls is 12 years. What is the average age (in years) of all boys and girls?a)12.7b)14.6c)19.3d)8.5Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Average age of 6 boys is 14 years. The average age of 11 girls is 12 years. What is the average age (in years) of all boys and girls?a)12.7b)14.6c)19.3d)8.5Correct answer is option 'A'. Can you explain this answer?.
Solutions for Average age of 6 boys is 14 years. The average age of 11 girls is 12 years. What is the average age (in years) of all boys and girls?a)12.7b)14.6c)19.3d)8.5Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Railways. Download more important topics, notes, lectures and mock test series for Railways Exam by signing up for free.
Here you can find the meaning of Average age of 6 boys is 14 years. The average age of 11 girls is 12 years. What is the average age (in years) of all boys and girls?a)12.7b)14.6c)19.3d)8.5Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Average age of 6 boys is 14 years. The average age of 11 girls is 12 years. What is the average age (in years) of all boys and girls?a)12.7b)14.6c)19.3d)8.5Correct answer is option 'A'. Can you explain this answer?, a detailed solution for Average age of 6 boys is 14 years. The average age of 11 girls is 12 years. What is the average age (in years) of all boys and girls?a)12.7b)14.6c)19.3d)8.5Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of Average age of 6 boys is 14 years. The average age of 11 girls is 12 years. What is the average age (in years) of all boys and girls?a)12.7b)14.6c)19.3d)8.5Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Average age of 6 boys is 14 years. The average age of 11 girls is 12 years. What is the average age (in years) of all boys and girls?a)12.7b)14.6c)19.3d)8.5Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice Railways tests.
Explore Courses for Railways exam

Top Courses for Railways

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