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How many gallons of water must be added to 20 gallons of a 10% solutio
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10 Jun 2022, 03:00
10 Jun 2022, 03:00
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Question Stats:
61% (01:30) correct
38% (02:27) wrong based on 13 sessions
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How many gallons of water must be added to 20 gallons of a 10% solution of salt and water to reduce it to a 4% solution?
Show: ::
30
Part of the project: Skill Builder Project for a Q170
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GRE Math Essentials
GRE Geometry Formulas for a Q170
GRE - Math Book
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GRE Math Essentials
GRE Geometry Formulas for a Q170
GRE - Math Book
Re: How many gallons of water must be added to 20 gallons of a 10% solutio
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19 Jun 2022, 13:00
19 Jun 2022, 13:00
Expert Reply
Re: How many gallons of water must be added to 20 gallons of a 10% solutio
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09 Jul 2022, 13:37
09 Jul 2022, 13:37
Expert Reply
OE
Quote:
Let x = the number of gallons of water. Since water is 0% solution, 20(10) + x(0) = (20 + x)4 200 = 80 + 4x 4x = 120, so x = 30 gallons.
