Teaching Exam > Teaching Questions > The average of marks obtained by 120 candidat...
Start Learning for Free
The average of marks obtained by 120 candidates was 35. If the average of marks of passed candidates was 39 and that of failed candidates was 15, the number of candidates who passed the examination is:
- a)80
- b)110
- c)100
- d)70
Correct answer is option 'C'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
The average of marks obtained by 120 candidates was 35. If the average...
Most Upvoted Answer
The average of marks obtained by 120 candidates was 35. If the average...
To find the number of candidates who passed the examination, we need to determine the number of candidates who failed the examination and then subtract it from the total number of candidates.
Given:
- Total number of candidates = 120
- Average marks of all candidates = 35
- Average marks of passed candidates = 39
- Average marks of failed candidates = 15
Let's solve this problem step by step:
Step 1: Find the total marks obtained by all candidates.
The total marks obtained by all candidates can be calculated by multiplying the average marks by the number of candidates.
Total marks = Average marks * Number of candidates
Total marks = 35 * 120 = 4200
Step 2: Find the total marks obtained by the passed candidates.
The total marks obtained by the passed candidates can be calculated by multiplying the average marks of passed candidates by the number of passed candidates.
Total marks of passed candidates = Average marks of passed candidates * Number of passed candidates
Total marks of passed candidates = 39 * Number of passed candidates
Step 3: Find the total marks obtained by the failed candidates.
The total marks obtained by the failed candidates can be calculated by multiplying the average marks of failed candidates by the number of failed candidates.
Total marks of failed candidates = Average marks of failed candidates * Number of failed candidates
Total marks of failed candidates = 15 * Number of failed candidates
Step 4: Set up an equation using the total marks obtained by all candidates.
Since the total marks obtained by all candidates is equal to the sum of the total marks obtained by the passed candidates and the total marks obtained by the failed candidates, we can set up the following equation:
Total marks = Total marks of passed candidates + Total marks of failed candidates
4200 = 39 * Number of passed candidates + 15 * Number of failed candidates
Step 5: Use the equation to solve for the number of passed candidates.
Substitute the given values into the equation and solve for the number of passed candidates:
4200 = 39 * Number of passed candidates + 15 * Number of failed candidates
4200 = 39 * Number of passed candidates + 15 * (120 - Number of passed candidates)
4200 = 39 * Number of passed candidates + 1800 - 15 * Number of passed candidates
4200 - 1800 = 39 * Number of passed candidates - 15 * Number of passed candidates
2400 = 24 * Number of passed candidates
Number of passed candidates = 2400 / 24
Number of passed candidates = 100
Therefore, the number of candidates who passed the examination is 100.
Given:
- Total number of candidates = 120
- Average marks of all candidates = 35
- Average marks of passed candidates = 39
- Average marks of failed candidates = 15
Let's solve this problem step by step:
Step 1: Find the total marks obtained by all candidates.
The total marks obtained by all candidates can be calculated by multiplying the average marks by the number of candidates.
Total marks = Average marks * Number of candidates
Total marks = 35 * 120 = 4200
Step 2: Find the total marks obtained by the passed candidates.
The total marks obtained by the passed candidates can be calculated by multiplying the average marks of passed candidates by the number of passed candidates.
Total marks of passed candidates = Average marks of passed candidates * Number of passed candidates
Total marks of passed candidates = 39 * Number of passed candidates
Step 3: Find the total marks obtained by the failed candidates.
The total marks obtained by the failed candidates can be calculated by multiplying the average marks of failed candidates by the number of failed candidates.
Total marks of failed candidates = Average marks of failed candidates * Number of failed candidates
Total marks of failed candidates = 15 * Number of failed candidates
Step 4: Set up an equation using the total marks obtained by all candidates.
Since the total marks obtained by all candidates is equal to the sum of the total marks obtained by the passed candidates and the total marks obtained by the failed candidates, we can set up the following equation:
Total marks = Total marks of passed candidates + Total marks of failed candidates
4200 = 39 * Number of passed candidates + 15 * Number of failed candidates
Step 5: Use the equation to solve for the number of passed candidates.
Substitute the given values into the equation and solve for the number of passed candidates:
4200 = 39 * Number of passed candidates + 15 * Number of failed candidates
4200 = 39 * Number of passed candidates + 15 * (120 - Number of passed candidates)
4200 = 39 * Number of passed candidates + 1800 - 15 * Number of passed candidates
4200 - 1800 = 39 * Number of passed candidates - 15 * Number of passed candidates
2400 = 24 * Number of passed candidates
Number of passed candidates = 2400 / 24
Number of passed candidates = 100
Therefore, the number of candidates who passed the examination is 100.
|
Explore Courses for Teaching exam
|
|
Similar Teaching Doubts
The average of marks obtained by 120 candidates was 35. If the average of marks of passed candidates was 39 and that of failed candidates was 15, the number of candidates who passed the examination is:a)80b)110c)100d)70Correct answer is option 'C'. Can you explain this answer?
Question Description
The average of marks obtained by 120 candidates was 35. If the average of marks of passed candidates was 39 and that of failed candidates was 15, the number of candidates who passed the examination is:a)80b)110c)100d)70Correct answer is option 'C'. Can you explain this answer? for Teaching 2024 is part of Teaching preparation. The Question and answers have been prepared according to the Teaching exam syllabus. Information about The average of marks obtained by 120 candidates was 35. If the average of marks of passed candidates was 39 and that of failed candidates was 15, the number of candidates who passed the examination is:a)80b)110c)100d)70Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Teaching 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The average of marks obtained by 120 candidates was 35. If the average of marks of passed candidates was 39 and that of failed candidates was 15, the number of candidates who passed the examination is:a)80b)110c)100d)70Correct answer is option 'C'. Can you explain this answer?.
The average of marks obtained by 120 candidates was 35. If the average of marks of passed candidates was 39 and that of failed candidates was 15, the number of candidates who passed the examination is:a)80b)110c)100d)70Correct answer is option 'C'. Can you explain this answer? for Teaching 2024 is part of Teaching preparation. The Question and answers have been prepared according to the Teaching exam syllabus. Information about The average of marks obtained by 120 candidates was 35. If the average of marks of passed candidates was 39 and that of failed candidates was 15, the number of candidates who passed the examination is:a)80b)110c)100d)70Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Teaching 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The average of marks obtained by 120 candidates was 35. If the average of marks of passed candidates was 39 and that of failed candidates was 15, the number of candidates who passed the examination is:a)80b)110c)100d)70Correct answer is option 'C'. Can you explain this answer?.
Solutions for The average of marks obtained by 120 candidates was 35. If the average of marks of passed candidates was 39 and that of failed candidates was 15, the number of candidates who passed the examination is:a)80b)110c)100d)70Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Teaching.
Download more important topics, notes, lectures and mock test series for Teaching Exam by signing up for free.
Here you can find the meaning of The average of marks obtained by 120 candidates was 35. If the average of marks of passed candidates was 39 and that of failed candidates was 15, the number of candidates who passed the examination is:a)80b)110c)100d)70Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The average of marks obtained by 120 candidates was 35. If the average of marks of passed candidates was 39 and that of failed candidates was 15, the number of candidates who passed the examination is:a)80b)110c)100d)70Correct answer is option 'C'. Can you explain this answer?, a detailed solution for The average of marks obtained by 120 candidates was 35. If the average of marks of passed candidates was 39 and that of failed candidates was 15, the number of candidates who passed the examination is:a)80b)110c)100d)70Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of The average of marks obtained by 120 candidates was 35. If the average of marks of passed candidates was 39 and that of failed candidates was 15, the number of candidates who passed the examination is:a)80b)110c)100d)70Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The average of marks obtained by 120 candidates was 35. If the average of marks of passed candidates was 39 and that of failed candidates was 15, the number of candidates who passed the examination is:a)80b)110c)100d)70Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice Teaching tests.
|
|
Explore Courses for Teaching 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
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup