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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 %?
5Q:
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 %?
- 1155 litresfalse
- 2149 litresfalse
- 3150 litrestrue
- 4150.4 litresfalse
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