Latest Capgemini Aptitude Question SOLUTION: Gaurav buys milk at Rs. 60 per litre, adds water to it and then sells it at Rs. 75 per litre. What should be the ratio of milk to water to get a profit of 37.5%?

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Gaurav buys milk at Rs. 60 per litre, adds water to it and then sells it at Rs. 75 per litre. What should be the ratio of milk to water to get a profit of 37.5%?

Asked In Capgemini priya (9 years ago)

Unsolved Read Solution (7)

Is this Puzzle helpful?   (18)   (4) Submit Your Solution Alligation or Mixture

Read Solution (7) :

Jaspalsingh Parmar  (9 years ago)

When cp= Rs 60 and sp= Rs 75, gaurav gets profit of
profit= (sp-cp)/cp *100
=(75-60)/60*100
=25%
So for getting CP at 37.5% profit at same selling price.
=75*(100/137.5)= 7500/137.5= (100*6*12.5)/(11*12.5)=600/11

So pure milk= new cp/old cp= (600/11)/60=10/11

As pure milk=10/11
so water fraction will be=1-(10/11)=1/11

so ratio of milk to water=(10/11) / (1/11)
=10:1

Is this solution Helpfull? Yes (21) | No (1)  

sunny  (9 years ago)

jaspalsingh and some other u ppl always solve question with very difficult way so all student dint get n u feel u r so smart bullshit u all

Is this solution Helpfull? Yes (12) | No (6)  

Prasann  (9 years ago)

if Gain and SP is given then CP=SP*(100/100+gain)
CP of mixture=75*(100/100+37.5)=600/11
Mean CP=600/11
now
CP of water=0 and CP of pure milk=60 (given)
so
Quantity of water/Quantity of milk = (CP of pure milk-mean CP) / (mean CP - CP of water)
=(60-(600/11) ) / ((600/11)-0)
=(60/11 - 600/11)
=1/10 Ans.

Is this solution Helpfull? Yes (11) | No (4)  

Jaspalsingh Parmar  (9 years ago)

The cost price of the mixture = (100/137. 5)(75) = 600/11.
∴
Fraction of purespirit in the mixture = (600/11) ÷ 60 = 10/11.
∴
the fraction of water is 1/11.
∴
Ratio 10 : 1

Is this solution Helpfull? Yes (8) | No (2)  

Khushboo Sharma  (9 years ago)

it should be 1/5

Is this solution Helpfull? Yes (1) | No (6)  

Dilip Kumar Meghwal  (9 years ago)

M W
60 0
(75*100/137.5)
x y
x/y=(60-600/11)/(600/11-0)
x/y=10/1

Is this solution Helpfull? Yes (1) | No (1)  

shubham  (7 years ago)

milk to water ratio is 7:1.
7 part of 1 litre milk will be taken and mixed with water and sold at the rate of 75.

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