CA Foundation Exam > CA Foundation Questions > The mean proportional between 12x2and 27y2isa...
Start Learning for Free
The mean proportional between 12x2 and 27y2 is
- a)18xy
- b)81xy
- c)8xy
- d)none of these
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
The mean proportional between 12x2and 27y2isa)18xyb)81xyc)8xyd)none of...
Free Test
FREE
| Start Free Test |
Community Answer
The mean proportional between 12x2and 27y2isa)18xyb)81xyc)8xyd)none of...
Given: Mean proportional between 12x^2 and 27y^2
Mean Proportional:
Mean proportional between two numbers a and b is the square root of their product, i.e., √(ab).
Calculation:
Let the mean proportional between 12x^2 and 27y^2 be M.
Then we have:
M = √(12x^2 × 27y^2)
M = √(4 × 3 × 3 × 3 × x^2 × 3 × 3 × y^2)
M = √(4 × 3^4 × x^2 × y^2)
M = 2 × 3^2 × √(x^2 × y^2)
M = 18xy
Therefore, the mean proportional between 12x^2 and 27y^2 is 18xy.
Hence, the correct option is (A) 18xy.
Mean Proportional:
Mean proportional between two numbers a and b is the square root of their product, i.e., √(ab).
Calculation:
Let the mean proportional between 12x^2 and 27y^2 be M.
Then we have:
M = √(12x^2 × 27y^2)
M = √(4 × 3 × 3 × 3 × x^2 × 3 × 3 × y^2)
M = √(4 × 3^4 × x^2 × y^2)
M = 2 × 3^2 × √(x^2 × y^2)
M = 18xy
Therefore, the mean proportional between 12x^2 and 27y^2 is 18xy.
Hence, the correct option is (A) 18xy.
Attention CA Foundation Students!
To make sure you are not studying endlessly, EduRev has designed CA Foundation study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in CA Foundation.
|
Explore Courses for CA Foundation exam
|
|
Similar CA Foundation Doubts
Top Courses for CA FoundationView all
The mean proportional between 12x2and 27y2isa)18xyb)81xyc)8xyd)none of theseCorrect answer is option 'A'. Can you explain this answer?
Question Description
The mean proportional between 12x2and 27y2isa)18xyb)81xyc)8xyd)none of theseCorrect answer is option 'A'. Can you explain this answer? for CA Foundation 2024 is part of CA Foundation preparation. The Question and answers have been prepared according to the CA Foundation exam syllabus. Information about The mean proportional between 12x2and 27y2isa)18xyb)81xyc)8xyd)none of theseCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for CA Foundation 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The mean proportional between 12x2and 27y2isa)18xyb)81xyc)8xyd)none of theseCorrect answer is option 'A'. Can you explain this answer?.
The mean proportional between 12x2and 27y2isa)18xyb)81xyc)8xyd)none of theseCorrect answer is option 'A'. Can you explain this answer? for CA Foundation 2024 is part of CA Foundation preparation. The Question and answers have been prepared according to the CA Foundation exam syllabus. Information about The mean proportional between 12x2and 27y2isa)18xyb)81xyc)8xyd)none of theseCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for CA Foundation 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The mean proportional between 12x2and 27y2isa)18xyb)81xyc)8xyd)none of theseCorrect answer is option 'A'. Can you explain this answer?.
Solutions for The mean proportional between 12x2and 27y2isa)18xyb)81xyc)8xyd)none of theseCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for CA Foundation.
Download more important topics, notes, lectures and mock test series for CA Foundation Exam by signing up for free.
Here you can find the meaning of The mean proportional between 12x2and 27y2isa)18xyb)81xyc)8xyd)none of theseCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The mean proportional between 12x2and 27y2isa)18xyb)81xyc)8xyd)none of theseCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for The mean proportional between 12x2and 27y2isa)18xyb)81xyc)8xyd)none of theseCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of The mean proportional between 12x2and 27y2isa)18xyb)81xyc)8xyd)none of theseCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The mean proportional between 12x2and 27y2isa)18xyb)81xyc)8xyd)none of theseCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice CA Foundation tests.
|
|
Explore Courses for CA Foundation 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