Two cyclists start at the same point and ride in opposite directions, one at 14 miles per hour and the other at 11 miles per hour. How far apart are they after 2.5 hours?

Correct answer to question 179 (Arithmetic Reasoning): 62.5 miles

Method

Riding in opposite directions, the distance between them grows at the sum of their speeds. Combined they separate at 14 + 11 = 25 miles per hour, and over 2.5 hours that is 25 x 2.5 = 62.5 miles.