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 1 of 7.
Barat said:
2 decades ago
How 2/3 ?
Coolman said:
2 decades ago
Can any one explain how 2/3?
Moncy said:
1 decade ago
@Barat:
By the rule of ratio,if x:y is the ratio,to get the quantity of x,the formula is x/(x+y),and to get the quantity of y,the formula is y/(x+y).
Hope that helped you..
By the rule of ratio,if x:y is the ratio,to get the quantity of x,the formula is x/(x+y),and to get the quantity of y,the formula is y/(x+y).
Hope that helped you..
Barat said:
1 decade ago
@Moncy
Thanks..
Thanks..
Ramm said:
1 decade ago
Thank you so much Moncy
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.
Mohan said:
1 decade ago
Can someone explain. still i din't get the answer?
Maggi said:
1 decade ago
Why not 1/3. Because in question it is asked the replaced whisky of 1st jar.
Prakash said:
1 decade ago
Suppose the vessel initially contains 100 litres of liquid.
So, it contain 40 lit alchohal, 60 lit water.
Let x litres of this liquid be replaced .
Quantity of alchohal in new mixture =(40-40x/100+19x/100)
=40-21x/100
Now vessel contain 26% alcohol
So, 40-21x/100=26
x=2/3*100.
So, it contain 40 lit alchohal, 60 lit water.
Let x litres of this liquid be replaced .
Quantity of alchohal in new mixture =(40-40x/100+19x/100)
=40-21x/100
Now vessel contain 26% alcohol
So, 40-21x/100=26
x=2/3*100.
Naveen.j said:
1 decade ago
@maggi:.
Here in the question they are asking. How much of the quantity is replaced. Here, second quantity is replacing the first one. Hence, the second one is the answer. (i.i) 2/3.
Here in the question they are asking. How much of the quantity is replaced. Here, second quantity is replacing the first one. Hence, the second one is the answer. (i.i) 2/3.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers