GRE Quantitative Reasoning Questions, Algebra Topics (Set of numeric entry: 1)

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Selected Set: 1 (numeric entry)

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Select Exercise Set (numeric entry):

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1 2 3 4 5 6 7 8 9 10

Directions: Enter your answer as an integer or a decimal if there is a single answer box OR as a fraction if there are two separate boxes — one for the numerator and one for the denominator.

Answer Sheet of Set 1 (numeric entry)

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4 5 7

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4. A merchant made a profit of $5 on the sale of a sweater that cost the merchant $15. What is the profit expressed as a percent of the merchant's cost?

Give your answer to the nearest whole percent.

5. Working alone at its constant rate, machine A produces k liters of a chemical in 10 minutes. Working alone at its constant rate, machine B produces k liters of the chemical in 15 minutes. How many minutes does it take machines A and B, working simultaneously at their respective constant rates, to produce k liters of the chemical?

minutes

7. On a number line point a has coordinate -4 and point B has coordinate 6. What is the coordinate of point C which is midway between A and B ?