Latest self Aptitude Question SOLUTION: A vessel is full of a mixture of kerosene ane petrol in which there is 18% kerosene. 8liter are drawn off and then the vessel is filled with petrol. If the kerosene is now 15% ,how

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(#M40030655) SELF Numerical Ability question Keep an EYE

A vessel is full of a mixture of kerosene ane petrol in which there is 18% kerosene. 8liter are drawn off and then the vessel is filled with petrol. If the kerosene is now 15% ,how much does the vessel hold?
A-40
B-32
C-36
D-48

Kuldeep yadav (10 years ago)

Unsolved Read Solution (4)

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Sneha Mishra  (7 years ago)

Let the total capacity of vessel be x litres
Kerosene initially= 18x/100
Kerosene finally= 15x/100
Kerosene present in 8 liters of mixture= 18*8/100

18x/100 - 18*8/100 = 15x/100
3x = 144
x = 48 litres

Is this solution Helpfull? Yes (7) | No (1)  

riya sharma  (8 years ago)

Let us suppose ,vessel contains x litre of mixture Initially , kerosene=18% so petrol is (x-18)% afterwards,kerosene=15% after 8 litre is drawn off. So change is 3% or 3 litre of kerosene is drawn off . Initial ratio,18:x-18 so qty of kerosene drawn,18*8/x=3 which gives x=48litres

Is this solution Helpfull? Yes (2) | No   

Mahesh  (10 years ago)

Lets solve this question as a Allegatons question.

Even after 8 litres are removed, the remaining quantity has 18% of kerosene, we are mixing this remaining quantity with pure petrol( 0% kerosene) to get the result of 15% kerosene

These two quantities should be mixed in the ratio = 15-0/18-15 = 15/3 = 5:1 ratio
As we know the amount of petrol is 8 litres, the amount of the other mixture is 5* 8 = 40 litres
But 40 is not the answer, as it is the amount after 8 litres are removed
So, the capacity of the vessel is 48 litres

Answer is 48 litres

Is this solution Helpfull? Yes (1) | No (2)  

Tushar Jain  (8 years ago)

even i used alligations. for petrol
n1 values : n2 values
8liters x liters
85%
100% 82%


(85-85)/8 = 100-85/x
here 85% is the average amount which we get after mixing and n1 are n2 are the values before mixing
i think the answer should be 48 , 40 will be the amount to which the pure petrol is added ..
the vessel holds 48 liters

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