# Free GRE Practice Questions

Question 1 of 1
ID: GRE-QCQ-3
Section: Quantitative Reasoning - Comparison
Topics: Arithmetic; Time and Work
Difficulty level: Challenging

(Practice Mode: Single selected Question » Back to Overview)

Working independently, Machine A can complete a work in 3.5 hours, while Machine B can complete the same work in $x$ hours. Working simultaneously, they together complete the same work in 1.5 hours.

• Quantity A

$3$

• Quantity B

$x$

AQuantity A is greater.
BQuantity B is greater.
CThe two quantities are equal.
DThe relationship cannot be determined from the information given.