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Of the 315 gems for sale at jewelry wholesaler, are emeralds, are rubies, and are sapphires. The remaining gems are of a type other than emeralds, rubies, and sapphires. How many of the wholesaler’s gems are NOT emeralds, rubies, or sapphires?

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The ACT Mathematics Test contains 60 questions to be answered in 60 minutes.  The hardest ACT math questions (the last 10 to 15 questions) fall into two types: advanced concepts and complex questions. Advanced concepts questions cover what you learn in precalculus and trigonometry. FYI: Students that get into Harvard College have an ACT score of 34–36.

Of the 315 gems for sale at jewelry wholesaler, <img alt='images' src='https://www.fatskills.com/images2/ACT/eq02814.png'/><!--<m:math display='inline' overflow='scroll' xmlns:m='http://www.w3.org/1998/Math/MathML'><m:mrow><m:mfrac><m:mn>2</m:mn><m:mn>5</m:mn></m:mfrac></m:mrow></m:math>--> are emeralds, <img alt='images' src='https://www.fatskills.com/images2/ACT/eq02815.png'/><!--<m:math display='inline' overflow='scroll' xmlns:m='http://www.w3.org/1998/Math/MathML'><m:mrow><m:mfrac><m:mn>1</m:mn><m:mn>7</m:mn></m:mfrac></m:mrow></m:math>--> are rubies, and <img alt='images' src='https://www.fatskills.com/images2/ACT/eq02816.png'/><!--<m:math display='inline' overflow='scroll' xmlns:m='http://www.w3.org/1998/Math/MathML'><m:mrow><m:mfrac><m:mn>3</m:mn><m:mn>7</m:mn></m:mfrac></m:mrow></m:math>--> are sapphires. The remaining gems are of a type other than emeralds, rubies, and sapphires. How many of the wholesaler’s gems are NOT emeralds, rubies, or sapphires?






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