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A sample of 20 gallons of gasoline is found to be adulterated to the extent of 15%. How much pure gasoline should be add

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Junior | Next Rank: 30 Posts
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A sample of 20 gallons of gasoline is found to be adulterated to the extent of 15%. How much pure gasoline should be add

by Evo23 » Fri May 08, 2020 4:11 pm

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A sample of 20 gallons of gasoline is found to be adulterated to the extent of 15%. How much pure gasoline should be added to bring up the level of purity to 95%?

A. 20
B. 25
C. 30
D. 40
E. 45
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