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.
Ladli said:
1 decade ago
How you got 3.50 and 1.50? Please tell me.
Manasa said:
1 decade ago
@ladli
(20-16.50):(16.50-15)=3.50:1.50=7:3
(20-16.50):(16.50-15)=3.50:1.50=7:3
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?
Viswajit said:
1 decade ago
Thank you manasa.
San said:
1 decade ago
If we swap 15 and 20 places.
Why can't it be 3:7 ? is there any rule?
Why can't it be 3:7 ? is there any rule?
Sathish said:
1 decade ago
How we get 3.50:1.50=7:3?
Shashank said:
1 decade ago
350/100:150/100=35:15=7:3
Prakash said:
1 decade ago
Its better to follow simple method boss.
Lets assume that price of A be 150 and B is 200.
Mixture to sell at 165.
Cheaper grocery profit = 165-150 = 15.
Dearer grocery loss = 200-165=35.
Ratios to sell at 165 is.
35
---- = 7:3
15
Lets assume that price of A be 150 and B is 200.
Mixture to sell at 165.
Cheaper grocery profit = 165-150 = 15.
Dearer grocery loss = 200-165=35.
Ratios to sell at 165 is.
35
---- = 7:3
15
Atul Verma said:
1 decade ago
Let x kg of 1st is taken and (1-x) of 2nd is taken.
Then price of mixture will be:15*x+20*(1-x)=20-5x ----(1)
Given price of mixture is 16.5 -----(2)
From Equation (1) & (2)
20-5x=16.5
=> 5x=20-16.5
=> x=3.5/5
=> x=0.7
So,ratio is x:1-x i.e. 0.7:0.3 => 7:3 ans
Then price of mixture will be:15*x+20*(1-x)=20-5x ----(1)
Given price of mixture is 16.5 -----(2)
From Equation (1) & (2)
20-5x=16.5
=> 5x=20-16.5
=> x=3.5/5
=> x=0.7
So,ratio is x:1-x i.e. 0.7:0.3 => 7:3 ans
Krishna teja said:
1 decade ago
Atul thank you :).
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