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% ?

Neelam Mittal • 4.57K Points
Extraordinary Math

Q. 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) 150 litres
(C) 150.4 litres
(D) 149 litres

Correct Answer - Option(B)

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