Railways Exam > Railways Questions > A mixture of 70 litres contains milk and wat...
Start Learning for Free
A mixture of 70 litres contains milk and water in ratio of 3 :4. How many litres of milk must be added to the mixture so as to make the ratio 5 : 4?
- a)10 litres
- b)15 litres
- c)20 litres
- d)25 litres
Correct answer is option 'C'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
A mixture of 70 litres contains milk and water in ratio of 3 :4. How ...
Milk : Water
New ratio 5 : 4
Old ratio 3 : 4
Difference 2 : 0
Sum of old ratios = 3 + 4 = 7
∴ Milk added = (2/7)×70=20 litres.
Most Upvoted Answer
A mixture of 70 litres contains milk and water in ratio of 3 :4. How ...
Given:
- A mixture of 70 litres contains milk and water in ratio of 3 : 4
- We need to add milk to make the ratio 5 : 4
To solve this problem, we can use the following steps:
Step 1: Find the amount of milk and water in the original mixture
Let the amount of milk in the mixture be 3x and the amount of water be 4x.
Then, we have:
- 3x + 4x = 70 (total amount of mixture)
- 7x = 70
- x = 10
So, the amount of milk in the mixture is 3x = 30 litres and the amount of water is 4x = 40 litres.
Step 2: Find the amount of milk needed to make the new ratio
Let the amount of milk to be added be y litres.
Then, we have:
- (30 + y) / (40) = 5/4 (new ratio)
- 120 + 4y = 200
- 4y = 80
- y = 20
So, we need to add 20 litres of milk to the mixture.
Therefore, the correct answer is option C) 20 litres.
- A mixture of 70 litres contains milk and water in ratio of 3 : 4
- We need to add milk to make the ratio 5 : 4
To solve this problem, we can use the following steps:
Step 1: Find the amount of milk and water in the original mixture
Let the amount of milk in the mixture be 3x and the amount of water be 4x.
Then, we have:
- 3x + 4x = 70 (total amount of mixture)
- 7x = 70
- x = 10
So, the amount of milk in the mixture is 3x = 30 litres and the amount of water is 4x = 40 litres.
Step 2: Find the amount of milk needed to make the new ratio
Let the amount of milk to be added be y litres.
Then, we have:
- (30 + y) / (40) = 5/4 (new ratio)
- 120 + 4y = 200
- 4y = 80
- y = 20
So, we need to add 20 litres of milk to the mixture.
Therefore, the correct answer is option C) 20 litres.
Attention Railways Students!
To make sure you are not studying endlessly, EduRev has designed Railways study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Railways.
|
Explore Courses for Railways exam
|
|
Similar Railways Doubts
Top Courses for RailwaysView all
A mixture of 70 litres contains milk and water in ratio of 3 :4. How many litres of milk must be added to the mixture so as to make the ratio 5 : 4?a)10 litresb)15 litresc)20 litresd)25 litresCorrect answer is option 'C'. Can you explain this answer?
Question Description
A mixture of 70 litres contains milk and water in ratio of 3 :4. How many litres of milk must be added to the mixture so as to make the ratio 5 : 4?a)10 litresb)15 litresc)20 litresd)25 litresCorrect answer is option 'C'. 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 A mixture of 70 litres contains milk and water in ratio of 3 :4. How many litres of milk must be added to the mixture so as to make the ratio 5 : 4?a)10 litresb)15 litresc)20 litresd)25 litresCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A mixture of 70 litres contains milk and water in ratio of 3 :4. How many litres of milk must be added to the mixture so as to make the ratio 5 : 4?a)10 litresb)15 litresc)20 litresd)25 litresCorrect answer is option 'C'. Can you explain this answer?.
A mixture of 70 litres contains milk and water in ratio of 3 :4. How many litres of milk must be added to the mixture so as to make the ratio 5 : 4?a)10 litresb)15 litresc)20 litresd)25 litresCorrect answer is option 'C'. 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 A mixture of 70 litres contains milk and water in ratio of 3 :4. How many litres of milk must be added to the mixture so as to make the ratio 5 : 4?a)10 litresb)15 litresc)20 litresd)25 litresCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A mixture of 70 litres contains milk and water in ratio of 3 :4. How many litres of milk must be added to the mixture so as to make the ratio 5 : 4?a)10 litresb)15 litresc)20 litresd)25 litresCorrect answer is option 'C'. Can you explain this answer?.
Solutions for A mixture of 70 litres contains milk and water in ratio of 3 :4. How many litres of milk must be added to the mixture so as to make the ratio 5 : 4?a)10 litresb)15 litresc)20 litresd)25 litresCorrect answer is option 'C'. 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 A mixture of 70 litres contains milk and water in ratio of 3 :4. How many litres of milk must be added to the mixture so as to make the ratio 5 : 4?a)10 litresb)15 litresc)20 litresd)25 litresCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A mixture of 70 litres contains milk and water in ratio of 3 :4. How many litres of milk must be added to the mixture so as to make the ratio 5 : 4?a)10 litresb)15 litresc)20 litresd)25 litresCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for A mixture of 70 litres contains milk and water in ratio of 3 :4. How many litres of milk must be added to the mixture so as to make the ratio 5 : 4?a)10 litresb)15 litresc)20 litresd)25 litresCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of A mixture of 70 litres contains milk and water in ratio of 3 :4. How many litres of milk must be added to the mixture so as to make the ratio 5 : 4?a)10 litresb)15 litresc)20 litresd)25 litresCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A mixture of 70 litres contains milk and water in ratio of 3 :4. How many litres of milk must be added to the mixture so as to make the ratio 5 : 4?a)10 litresb)15 litresc)20 litresd)25 litresCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Railways tests.
|
|
Explore Courses for Railways 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