Aptitude - Alligation or Mixture - Discussion
Discussion Forum : Alligation or Mixture - General Questions (Q.No. 5)
5.
In what ratio must a grocer mix two varieties of pulses costing Rs. 15 and Rs. 20 per kg respectively so as to get a mixture worth Rs. 16.50 kg?
Answer: Option
Explanation:
By the rule of alligation:
| Cost of 1 kg pulses of 1st kind Cost of 1 kg pulses of 2nd kind | ||
| Rs. 15 | Mean Price Rs. 16.50 | Rs. 20 |
| 3.50 | 1.50 | |
Required rate = 3.50 : 1.50 = 7 : 3.
Discussion:
42 comments Page 2 of 5.
Praveen Shetty said:
1 decade ago
Check the option first.
7:3 = 7*first variety/10 + 3*second variety/10 = 16.50.
7*15/10 = 10.5.
3*20/10 = 6.
By adding two you'll get 16.5.
So 7:3 is correct.
7:3 = 7*first variety/10 + 3*second variety/10 = 16.50.
7*15/10 = 10.5.
3*20/10 = 6.
By adding two you'll get 16.5.
So 7:3 is correct.
Nani said:
2 years ago
As per question; 16.50 and c = 15 d = 20
now the ratio x : y.
3.5 : 1.5.
BY applying both sides * 10.
35 : 15,
So, the answer is 7 : 3.
now the ratio x : y.
3.5 : 1.5.
BY applying both sides * 10.
35 : 15,
So, the answer is 7 : 3.
(6)
Sumanth geras said:
1 decade ago
15(x)+20(y)/x+y = 16.50.
(Here x and y are the ratios in which they are to be mixed).
Then 15x+20y = 16.50x+16.50y.
On simplifying we get x:y = 7:3.
(Here x and y are the ratios in which they are to be mixed).
Then 15x+20y = 16.50x+16.50y.
On simplifying we get x:y = 7:3.
(1)
Sheetal said:
1 decade ago
If cost of 1kg pulses of 2'nd kind is=15
& 1'st kind is=20...
then what will be the ans?
Please tell me...
It's depends upon the mean price?
& 1'st kind is=20...
then what will be the ans?
Please tell me...
It's depends upon the mean price?
Prajwal K said:
1 year ago
@Mounika.
It is the mean price of the mixture and not the average price. And they have given the mean cost of the mix.
It is the mean price of the mixture and not the average price. And they have given the mean cost of the mix.
(1)
Codetackler said:
10 years ago
Let 15 is to be added in x amount.
Then 20 is to be added in (1-x).
Then, 15(x)+20(1-x) = 16.5.
Answer is (x/(1-x)).
Then 20 is to be added in (1-x).
Then, 15(x)+20(1-x) = 16.5.
Answer is (x/(1-x)).
Sowmya said:
1 decade ago
Is the below mentioned method correct.
15/2 = 7.5( consider it has 7).
20/2 = 10.
10-7 = 3.
So the answer is 7:3?
15/2 = 7.5( consider it has 7).
20/2 = 10.
10-7 = 3.
So the answer is 7:3?
Anup said:
1 decade ago
@Atul.
Really superb solution. Unlike the theoretical approach this is quite simple to understand.
Really superb solution. Unlike the theoretical approach this is quite simple to understand.
Arnab said:
7 years ago
Suppose, x kg from A.
Y kg from B.
15*x/x+y +20*y/x+y = 16.5,
x : y = 7 : 3.
Y kg from B.
15*x/x+y +20*y/x+y = 16.5,
x : y = 7 : 3.
(3)
Mounika said:
2 years ago
How does the mean price be 16.50?
As (15+20) /2 will be 17.5 na? Anyone, please explain to me.
As (15+20) /2 will be 17.5 na? Anyone, please explain to me.
(4)
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