A sample of 50 litres of glycerine is found to be adulterated to the extent of 20 % . How much pure glycerine should be added to it so as to bring down the percentage of impurity to 5 %?

A sample of 50 litres of glycerine is found to be adulterated to the e

1.	A sample of 50 litres of glycerine is found to be adulterated to the extent of 20 % . How much pure glycerine should be added to it so as to bring down the percentage of impurity to 5 %?
A.	155 litres
B.	149 litres
C.	150 litres
D.	150.4 litres
Answer» D. 150.4 litres

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A sample of 50 litres of glycerine is found to be adulterated to the extent of 20 % . How much pure glycerine should be added to it so as to bring down the percentage of impurity to 5 %?

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