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A mixture of 100 litres of spirit and alcohol contains 25% alcohol. How much more alcohol should be added to the mixture to increase the percentage of alcohol to 30% in the new mixture?

  • a)
    3.33 litres

  • b)
    7.14 litres

  • c)
    5 litres

  • d)
    4 litres

Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A mixture of 100 litres of spirit and alcohol contains 25% alcohol. Ho...
Alcohol content in the alcohol to be added = 100%

Therefore, the allegation diagram for this problem can be drawn as:




Therefore, ratio of the mixture to alcohol = 70/5 = 14/1

So, alcohol to be added = 100/14


Hence, the answer is "7.14 litres".


Choice B is the correct answer.
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Most Upvoted Answer
A mixture of 100 litres of spirit and alcohol contains 25% alcohol. Ho...
Given:
- Price of rice A = Rs. 9.30 per kg
- Price of rice B = Rs. 10.80 per kg
- Mixture price = Rs. 10 per kg

To find:
- Ratio in which rice A and rice B should be mixed to get the desired mixture price

Assumption:
- Let the ratio of rice A to rice B be x : y

Explanation:
Let's assume that we mix x kg of rice A with y kg of rice B.

The total cost of rice A = Rs. 9.30 * x
The total cost of rice B = Rs. 10.80 * y

The total cost of the mixture = Rs. 10 * (x + y)

According to the given information, the total cost of the mixture should be equal to the sum of the individual costs of rice A and rice B.

So, we have the equation:
Rs. 10 * (x + y) = Rs. 9.30 * x + Rs. 10.80 * y

Simplifying the equation:
10x + 10y = 9.30x + 10.80y
0.70x = 0.80y
x/y = 8/7

Hence, the ratio in which rice A and rice B should be mixed is 8 : 7, which means for every 8 kg of rice A, 7 kg of rice B should be mixed to get the desired mixture price of Rs. 10 per kg.

Therefore, the correct answer is option B) 8 : 7.
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Community Answer
A mixture of 100 litres of spirit and alcohol contains 25% alcohol. Ho...
8:7
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A mixture of 100 litres of spirit and alcohol contains 25% alcohol. How much more alcohol should be added to the mixture to increase the percentage of alcohol to 30% in the new mixture?a)3.33 litresb)7.14 litresc)5 litresd)4 litresCorrect answer is option 'B'. Can you explain this answer?
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A mixture of 100 litres of spirit and alcohol contains 25% alcohol. How much more alcohol should be added to the mixture to increase the percentage of alcohol to 30% in the new mixture?a)3.33 litresb)7.14 litresc)5 litresd)4 litresCorrect answer is option 'B'. Can you explain this answer? for Quant 2024 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about A mixture of 100 litres of spirit and alcohol contains 25% alcohol. How much more alcohol should be added to the mixture to increase the percentage of alcohol to 30% in the new mixture?a)3.33 litresb)7.14 litresc)5 litresd)4 litresCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Quant 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A mixture of 100 litres of spirit and alcohol contains 25% alcohol. How much more alcohol should be added to the mixture to increase the percentage of alcohol to 30% in the new mixture?a)3.33 litresb)7.14 litresc)5 litresd)4 litresCorrect answer is option 'B'. Can you explain this answer?.
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