Aptitude - Alligation or Mixture - Discussion
Discussion Forum : Alligation or Mixture - General Questions (Q.No. 9)
9.
A jar full of whisky contains 40% alcohol. A part of this whisky is replaced by another containing 19% alcohol and now the percentage of alcohol was found to be 26%. The quantity of whisky replaced is:
Answer: Option
Explanation:
By the rule of alligation, we have:
| Strength of first jar Strength of 2nd jar | ||
| 40% | Mean Strength 26% | 19% |
| 7 | 14 | |
So, ratio of 1st and 2nd quantities = 7 : 14 = 1 : 2
 Required quantity replaced = |
2 |
| 3 |
Discussion:
63 comments Page 4 of 7.
Sayeed said:
5 years ago
The ratio of 1st and 2nd quantities is=1:2 as it solved in explanation.
but they asked the quantity of whiskey replace means 2/(1+2)=2/3.
but they asked the quantity of whiskey replace means 2/(1+2)=2/3.
Vinoth said:
7 years ago
Among the 3 parts of 40% alcohol now 2 parts are 19% alcohol that means it is replaced. 1:2. Here 2 parts are replaced by 19% alcohol.
Avdhoot Kumbhar said:
2 years ago
@Anupam.
if x ml quantity is removed then how did you take that 4 - 0.4x instead of x? Similar to 0.19x? Please explain to me.
if x ml quantity is removed then how did you take that 4 - 0.4x instead of x? Similar to 0.19x? Please explain to me.
(1)
Sanzzz said:
1 decade ago
Whisky taken out from the jar 1 is 1/3, but the whisky replaced or added is 2/3. I think now you can understand?
Manish said:
9 years ago
It should be 1/3 right? because in the question it was asked that quantity of whisky replaced not alcohol.
Caligula said:
1 decade ago
Please explain 7 and 14. I am getting 2:1 ratio.
I know I was wrong but. I can't understand.
I know I was wrong but. I can't understand.
Raunak ranjan said:
3 years ago
Here, after solving we get 1:2.
If asked 1/3 will be original and 2/3 will be replaced.
If asked 1/3 will be original and 2/3 will be replaced.
(11)
Gowtham said:
9 years ago
Best explanation @Deepak Kumar.
Please anyone who didn't understand please follow that.
Please anyone who didn't understand please follow that.
Honie said:
7 years ago
I can't understand why are you multiplying x with 40/100?
Please explain this step.
Please explain this step.
P BASWARAJ said:
7 years ago
The replaced parts are 2.
And total parts are 3.
Then, the required answer is 2/3.
And total parts are 3.
Then, the required answer is 2/3.
(1)
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers