Truck A is on a straight highway heading due south at the same time Truck B is on a different straight highway...

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Source: Manhattan Prep

Truck A is on a straight highway heading due south at the same time Truck B is on a different straight highway heading due east. At 1:00 PM, Truck A is exactly 14 miles north of Truck B. If both trucks are traveling at a constant speed of 30 miles per hour, at which of the following times will they be exactly 10 miles apart?

A. 1:10 PM
B. 1:12 PM
C. 1:14 PM
D. 1:15 PM
E. 1:20 PM

The OA is B
Source: — Problem Solving |