SSC Exam > SSC Questions > Average of 36 results is 18. If 2 is subtract...
Start Learning for Free
Average of 36 results is 18. If 2 is subtracted from each result, then what will be the new average of the results?
- a)9
- b)16
- c)17
- d)17.5
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Average of 36 results is 18. If 2 is subtracted from each result, then...
Average of 36 results = 18
∵ Sum of 36 results = 36 × 18 = 648
Let, new average = x
According to the problem,
⇒ 36x = 648 - 36 × 2
⇒ 36x = 648 - 72
⇒ 36x = 576
⇒ x = 16
∴ New average = 16
∵ Sum of 36 results = 36 × 18 = 648
Let, new average = x
According to the problem,
⇒ 36x = 648 - 36 × 2
⇒ 36x = 648 - 72
⇒ 36x = 576
⇒ x = 16
∴ New average = 16
TRICK:
If same change is made in each of the Quantity then the same change also appears in the Average.
here for Example-
2 is subtracted from each Quantity than for final average we can directly subtract 2 from average to calculate final average
= 18 - 2 = 16
If same change is made in each of the Quantity then the same change also appears in the Average.
here for Example-
2 is subtracted from each Quantity than for final average we can directly subtract 2 from average to calculate final average
= 18 - 2 = 16
Most Upvoted Answer
Average of 36 results is 18. If 2 is subtracted from each result, then...
Given information:
- Average of 36 results is 18.
To find:
- The new average of the results after subtracting 2 from each result.
Solution:
To find the new average, we need to first find the sum of the results after subtracting 2 from each result, and then divide it by the total number of results.
Step 1: Find the sum of the results after subtracting 2 from each result
- Since the average is calculated by dividing the sum of the results by the total number of results, we can find the sum of the results by multiplying the average by the total number of results.
- In this case, the average is 18 and the total number of results is 36.
- So, the sum of the results before subtracting 2 from each result is 18 * 36 = 648.
Step 2: Find the sum of the results after subtracting 2 from each result
- To find the sum of the results after subtracting 2 from each result, we need to subtract 2 from each result and then find their sum.
- Since we have 36 results, we need to subtract 2 from each result 36 times.
- The sum of the results after subtracting 2 from each result is (648 - (2 * 36)) = 648 - 72 = 576.
Step 3: Find the new average
- To find the new average, we divide the sum of the results after subtracting 2 from each result by the total number of results.
- In this case, the sum of the results after subtracting 2 from each result is 576 and the total number of results is still 36.
- So, the new average is 576 / 36 = 16.
Therefore, the new average of the results after subtracting 2 from each result is 16. Hence, option B is the correct answer.
- Average of 36 results is 18.
To find:
- The new average of the results after subtracting 2 from each result.
Solution:
To find the new average, we need to first find the sum of the results after subtracting 2 from each result, and then divide it by the total number of results.
Step 1: Find the sum of the results after subtracting 2 from each result
- Since the average is calculated by dividing the sum of the results by the total number of results, we can find the sum of the results by multiplying the average by the total number of results.
- In this case, the average is 18 and the total number of results is 36.
- So, the sum of the results before subtracting 2 from each result is 18 * 36 = 648.
Step 2: Find the sum of the results after subtracting 2 from each result
- To find the sum of the results after subtracting 2 from each result, we need to subtract 2 from each result and then find their sum.
- Since we have 36 results, we need to subtract 2 from each result 36 times.
- The sum of the results after subtracting 2 from each result is (648 - (2 * 36)) = 648 - 72 = 576.
Step 3: Find the new average
- To find the new average, we divide the sum of the results after subtracting 2 from each result by the total number of results.
- In this case, the sum of the results after subtracting 2 from each result is 576 and the total number of results is still 36.
- So, the new average is 576 / 36 = 16.
Therefore, the new average of the results after subtracting 2 from each result is 16. Hence, option B is the correct answer.
|
Explore Courses for SSC exam
|
|
Average of 36 results is 18. If 2 is subtracted from each result, then what will be the new average of the results?a)9b)16c)17d)17.5Correct answer is option 'B'. Can you explain this answer?
Question Description
Average of 36 results is 18. If 2 is subtracted from each result, then what will be the new average of the results?a)9b)16c)17d)17.5Correct answer is option 'B'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about Average of 36 results is 18. If 2 is subtracted from each result, then what will be the new average of the results?a)9b)16c)17d)17.5Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Average of 36 results is 18. If 2 is subtracted from each result, then what will be the new average of the results?a)9b)16c)17d)17.5Correct answer is option 'B'. Can you explain this answer?.
Average of 36 results is 18. If 2 is subtracted from each result, then what will be the new average of the results?a)9b)16c)17d)17.5Correct answer is option 'B'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about Average of 36 results is 18. If 2 is subtracted from each result, then what will be the new average of the results?a)9b)16c)17d)17.5Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Average of 36 results is 18. If 2 is subtracted from each result, then what will be the new average of the results?a)9b)16c)17d)17.5Correct answer is option 'B'. Can you explain this answer?.
Solutions for Average of 36 results is 18. If 2 is subtracted from each result, then what will be the new average of the results?a)9b)16c)17d)17.5Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for SSC.
Download more important topics, notes, lectures and mock test series for SSC Exam by signing up for free.
Here you can find the meaning of Average of 36 results is 18. If 2 is subtracted from each result, then what will be the new average of the results?a)9b)16c)17d)17.5Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Average of 36 results is 18. If 2 is subtracted from each result, then what will be the new average of the results?a)9b)16c)17d)17.5Correct answer is option 'B'. Can you explain this answer?, a detailed solution for Average of 36 results is 18. If 2 is subtracted from each result, then what will be the new average of the results?a)9b)16c)17d)17.5Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of Average of 36 results is 18. If 2 is subtracted from each result, then what will be the new average of the results?a)9b)16c)17d)17.5Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Average of 36 results is 18. If 2 is subtracted from each result, then what will be the new average of the results?a)9b)16c)17d)17.5Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice SSC tests.
|
|
Explore Courses for SSC exam
|
|
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!
within 7 days!
Takes less than 10 seconds to signup