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Global Stats
GMAT Prep
P, Q, and R are located in a flat region of a certain state. Q is x miles due east of P and y miles due north of R. Each pair of points is connected by a straight road. What is the number of hours needed to drive from Q to R and then from R to P at a constant rate of z miles per hour, in terms of x, y, and z? (Assume x, y, and z are positive)
A. \(\frac{\sqrt{x^2+y^2}}{z}\)
B. \(\frac{x+\sqrt{x^2+y^2}}{z}\)
C. \(y+\frac{\sqrt{x^2+y^2}}{z}\)
D. \(\frac{z}{x+\sqrt{x^2+y^2}}\)
E. \(\frac{z}{y+\sqrt{x^2+y^2}}\)
OA C
P, Q, and R are located in a flat region of a certain state. Q is x miles due east of P and y miles due north of R. Each pair of points is connected by a straight road. What is the number of hours needed to drive from Q to R and then from R to P at a constant rate of z miles per hour, in terms of x, y, and z? (Assume x, y, and z are positive)
A. \(\frac{\sqrt{x^2+y^2}}{z}\)
B. \(\frac{x+\sqrt{x^2+y^2}}{z}\)
C. \(y+\frac{\sqrt{x^2+y^2}}{z}\)
D. \(\frac{z}{x+\sqrt{x^2+y^2}}\)
E. \(\frac{z}{y+\sqrt{x^2+y^2}}\)
OA C
