UPSC Exam > UPSC Questions > In an examination, A has scored 20 marks more...
Start Learning for Free
In an examination, A has scored 20 marks more than B. If B has scored 5% less marks than A, how much has B scored?
- a)360
- b)380
- c)400
- d)420
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
In an examination, A has scored 20 marks more than B. If B has scored ...
Check options directly.
Start with (a). If B is 360, A will be 380. Now, 5% of 380 = 19. So B will become 380 – 19 = 361. Hence this option is wrong (B is 360, not 361).
If B is 380, A will be 400. Now, 5% of 400 = 20. So B will be 400 – 20 = 380. Hence (b) is correct. You do not need to check options (c) and (d) at all.
Most Upvoted Answer
In an examination, A has scored 20 marks more than B. If B has scored ...
Given information:
- A scored 20 marks more than B
- B scored 5% less marks than A
To find:
- How much did B score?
Solution:
Let's assume B's score as x.
Then, according to the given information, A's score will be (x+20).
Also, we know that B scored 5% less marks than A. Mathematically, we can write it as:
x = (A - 5/100*A)
x = 0.95A
Now, substituting the value of A from the first equation, we get:
x = 0.95(x+20)
x = 0.95x + 19
0.05x = 19
x = 380
Therefore, B scored 380 marks.
Answer: Option B
- A scored 20 marks more than B
- B scored 5% less marks than A
To find:
- How much did B score?
Solution:
Let's assume B's score as x.
Then, according to the given information, A's score will be (x+20).
Also, we know that B scored 5% less marks than A. Mathematically, we can write it as:
x = (A - 5/100*A)
x = 0.95A
Now, substituting the value of A from the first equation, we get:
x = 0.95(x+20)
x = 0.95x + 19
0.05x = 19
x = 380
Therefore, B scored 380 marks.
Answer: Option B
Free Test
FREE
| Start Free Test |
Community Answer
In an examination, A has scored 20 marks more than B. If B has scored ...
Let B scored m marks.
So, A scored m + 20 marks.
Let maximum marks be M.
According to the question, B has scored 5% less marks than A.
So, marks scored by B = (100 - 5)% of A
m = 95/100 � (m + 20)
100m = 95m + 1900
5m = 1900
m = 380
Attention UPSC Students!
To make sure you are not studying endlessly, EduRev has designed UPSC study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in UPSC.
|
Explore Courses for UPSC exam
|
|
Similar UPSC Doubts
Top Courses for UPSCView all
In an examination, A has scored 20 marks more than B. If B has scored 5% less marks than A, how much has B scored?a)360b)380c)400d)420Correct answer is option 'B'. Can you explain this answer?
Question Description
In an examination, A has scored 20 marks more than B. If B has scored 5% less marks than A, how much has B scored?a)360b)380c)400d)420Correct answer is option 'B'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about In an examination, A has scored 20 marks more than B. If B has scored 5% less marks than A, how much has B scored?a)360b)380c)400d)420Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In an examination, A has scored 20 marks more than B. If B has scored 5% less marks than A, how much has B scored?a)360b)380c)400d)420Correct answer is option 'B'. Can you explain this answer?.
In an examination, A has scored 20 marks more than B. If B has scored 5% less marks than A, how much has B scored?a)360b)380c)400d)420Correct answer is option 'B'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about In an examination, A has scored 20 marks more than B. If B has scored 5% less marks than A, how much has B scored?a)360b)380c)400d)420Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In an examination, A has scored 20 marks more than B. If B has scored 5% less marks than A, how much has B scored?a)360b)380c)400d)420Correct answer is option 'B'. Can you explain this answer?.
Solutions for In an examination, A has scored 20 marks more than B. If B has scored 5% less marks than A, how much has B scored?a)360b)380c)400d)420Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC.
Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free.
Here you can find the meaning of In an examination, A has scored 20 marks more than B. If B has scored 5% less marks than A, how much has B scored?a)360b)380c)400d)420Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
In an examination, A has scored 20 marks more than B. If B has scored 5% less marks than A, how much has B scored?a)360b)380c)400d)420Correct answer is option 'B'. Can you explain this answer?, a detailed solution for In an examination, A has scored 20 marks more than B. If B has scored 5% less marks than A, how much has B scored?a)360b)380c)400d)420Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of In an examination, A has scored 20 marks more than B. If B has scored 5% less marks than A, how much has B scored?a)360b)380c)400d)420Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice In an examination, A has scored 20 marks more than B. If B has scored 5% less marks than A, how much has B scored?a)360b)380c)400d)420Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice UPSC tests.
|
|
Explore Courses for UPSC 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!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup