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 1 of 5.
Sweta said:
7 years ago
Let the ratio be x:y.
Suppose x kg of pulse1 and y kg of pulse2 is mixed. The total kg of the mixture will be (x+y)kg.
So, equating the costs:
15x+20y=16.5(x+y).
1.5x=3.5y.
So, x/y=3.5/1.5.
->x:y=7:3.
Suppose x kg of pulse1 and y kg of pulse2 is mixed. The total kg of the mixture will be (x+y)kg.
So, equating the costs:
15x+20y=16.5(x+y).
1.5x=3.5y.
So, x/y=3.5/1.5.
->x:y=7:3.
(62)
Smita said:
5 years ago
How is possible in 7:3?
I mean 20-16.50 = 4.50. So how its 3.50? Please explain.
I mean 20-16.50 = 4.50. So how its 3.50? Please explain.
(7)
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)
Indu said:
6 years ago
3.50/100 : 1.5/100 = 350/100 : 150/100 = 7:3.
(6)
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)
Daniel chebet said:
6 years ago
Thanks all.
(4)
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)
Sureshkumar said:
1 decade ago
(20-16.50)=3.50.
(16.50-15)=1.50.
If values in points means should divide by 100 or 10 based on that because ratio should not be in points. So,
3.50/100 = 35.
1.50/100 = 15.
Respectively 35:15 = 7:3.
(16.50-15)=1.50.
If values in points means should divide by 100 or 10 based on that because ratio should not be in points. So,
3.50/100 = 35.
1.50/100 = 15.
Respectively 35:15 = 7:3.
(1)
Navdeep said:
8 years ago
The mean price is a trick , this question is particularly based on it . as we see there is only one equation made i.e [15x + 20y = 16.5] other than this we cant make any equation.
My suggestion to solve these type of question where only one equation is made to put the value of options given.
As here only one option satisfies.
My suggestion to solve these type of question where only one equation is made to put the value of options given.
As here only one option satisfies.
(1)
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)
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