Aptitude - Alligation or Mixture - Discussion
Discussion Forum : Alligation or Mixture - General Questions (Q.No. 6)
6.
A dishonest milkman professes to sell his milk at cost price but he mixes it with water and thereby gains 25%. The percentage of water in the mixture is:
4%
6
%
%20%
25%
Answer: Option
Explanation:
Let C.P. of 1 litre milk be Re. 1
Then, S.P. of 1 litre of mixture = Re. 1, Gain = 25%.
| C.P. of 1 litre mixture = Re. |  |
100 | x 1 |  |
= | 4 |
| 125 | 5 |
By the rule of alligation, we have:
| C.P. of 1 litre of milk C.P. of 1 litre of water | |||||
| Re. 1 | Mean Price
| 0 | |||
|
|
||||
 Ratio of milk to water = |
4 | : | 1 | = 4 : 1. |
| 5 | 5 |
| Hence, percentage of water in the mixture = | |
1 | x 100 | % |
= 20%. |
| 5 |
Discussion:
65 comments Page 6 of 7.
PRAVIJA REDDY said:
9 years ago
I'm not able to understand the solution. So please someone help me to get it.
Anamika said:
1 decade ago
Where it is given that C.P. is rupee one?
Would you please explain.
Would you please explain.
Ted said:
1 decade ago
You are assuming CP. AS rupee one for easy calculation. Thats all!
Diptam said:
9 years ago
What will happen if the cp of the milk will be Rs 4 per litre?
Priya said:
7 years ago
I am unable to understand. Please, anybody explain me clearly.
Arun said:
6 years ago
Here gain%/100 + gain%*100 it means 25/100 + 25*100 = 20%.
Siva said:
8 years ago
Simple.
Gain=25.
Total milk =125.
Then 25/125=20%.
Gain=25.
Total milk =125.
Then 25/125=20%.
Pooju said:
3 years ago
@Vikas Rawat.
Thank you you explained very well.
Thank you you explained very well.
(3)
Pankaj said:
1 decade ago
From where 100/125 is come ?
plz tell soon
plz tell soon
Neela satya sai said:
4 years ago
@Rahul.
Excellent explanation. Thanks.
Excellent explanation. Thanks.
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