Alligations or Mixtures
Aptitude

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Q.

In what ratio must wheat at Rs.3.20 per kg be mixed with wheat at Rs.2.90 per kg so that the mixture be worth Rs.3.08 per kg?

 A.

3 : 4

 B.

2 : 3

 C.

3 : 2

 D.

4 : 3

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Solution:
Option(C) is correct

C.P of a unit quantity of 1st kind  = Rs. 3.20
C.P of a unit quantity of 2nd kind  = Rs. 2.90
Mean price = Rs.3.08

C.P of unit quantity         C.P of unit quantity

of 1st kind                         of 2nd kind

    (Rs. 3.20)                         (Rs. 2.90)

 

                     \                       /
                        Mean Price

                         (Rs.3.08)

                    /                        \

 

 (3.08 – 2.90)          :           (3.20 – 3.08)

       0.18                                      0.12


Required ratio = 0.18 : 0.12 = 3 : 2


(6) Comment(s)


Sidharth
 ()

Is this right answer?

Because according to me 2:3 is right.



Anupam
 ()

I think the ratio is 2:3 because we make dearer-mean:mean-cheaper. Can somebody correct me if I am wrong


Chandel
 ()

Ratio will be 3:2 only,since,

$\text{dearer-mean}:\text{mean-cheaper} :: \text{dearer} : \text{cheaper}$

$\Rightarrow \text{dearer} : \text{cheaper}:: 0.18 : 0.12$

$\Rightarrow \text{dearer} : \text{cheaper}:: 3 : 2$


Renu
 ()

Aman just be regular with what you practice...solve questions and try not to check the solution..



Aman
 ()

i m so bad in aptitude what i have to do?,kindly tell me plz i wanna to get govt job


Manendra
 ()

Aman don't be nervous. Start with any aptitude topic u r comfortable with, keep solving quality problems. Slowly develop concepts and keep on reading new concepts. Persistence is the Key.