Plane a leaves albany at 2: 00 p. m., averaging 400 mph and flying in a northerly direction. plane b leaves albany at 2: 30 p. m., averaging 325 mph and flying due east. at 5: 00 p. m., how far apart will the planes be? a. 1,449 b. 1,649 c. 1,849

From 2:00 pm to 5:00 pm, Plane A traveled for 3 hours. The total distance it had traveled is the product of its speed and the number of hours which is,
                        400 mph x 3 hours = 1200 miles
For Plane B, from 2:30 pm to 5:00 pm, it traveled for 2.5 hours and the total distance it had traveled is 812.5 miles. The unknown distance is the hypotenuse of the right triangle such that,
                              x² = (1200 miles)² + (812.5 miles)²
The value of x from the equation is 1449.19 miles. Thus, the answer is letter A.