GRE Math Quantitative Comparisons Question 152

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Source: OG2

Machine R, working alone at a constant rate, produces x units of a product in 30 minutes, and machine S, working alone at a constant rate, produces x units of the product in 48 minutes, where x is a positive integer.

Quantity A

The number of units of the product that machine R, working alone at its constant rate, produces in 3 hours

Quantity B

The number of units of the product that machine S, working alone at its constant rate, produces in 4 hours

  • A Quantity A is greater.
  • B Quantity B is greater.
  • C The two quantities are equal.
  • D The relationship cannot be determined from the information given.

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