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.
NAVEEN KUMAR said:
6 months ago
3.5, 1.5
Now, to make it easier, you can multiply both numbers by 10 to eliminate the decimal points:
3.5 * 10 = 35
1.5 * 10 = 15.
Next, simplify this ratio by dividing both numbers by their greatest common divisor (GCD), which is 5:
35/5 = 7
15/5 = 3
(/5 is the greatest common divisor)
So, the final simplified ratio is 7:3.
So, the final simplified ratio is 7:3.
Now, to make it easier, you can multiply both numbers by 10 to eliminate the decimal points:
3.5 * 10 = 35
1.5 * 10 = 15.
Next, simplify this ratio by dividing both numbers by their greatest common divisor (GCD), which is 5:
35/5 = 7
15/5 = 3
(/5 is the greatest common divisor)
So, the final simplified ratio is 7:3.
So, the final simplified ratio is 7:3.
(1)
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)
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)
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)
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)
Indu said:
6 years ago
3.50/100 : 1.5/100 = 350/100 : 150/100 = 7:3.
(6)
Daniel chebet said:
6 years ago
Thanks all.
(4)
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)
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)
Bitu ojah said:
7 years ago
Thank you so much @Kousik Maji.
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