<PRE><B>Question 536251</B>
This is a popular question on the Wonderlic. We have a comprehensive blog post on solving this problem here: http://www.beatthewonderlic.com/blog/2015/1/10/a-train-travels-20-feet-in-15-second-at-this-same-speed-how-many-feet-will-it-travel-in-three-seconds 

SOLUTION: 
Step 1: Get to 1. 
If a train travels 20 feet in 1/5 second, then how far will it travel in 1 whole second? We mus multiply 20 by 5 to find out: 
20 * 5 = 100 
Step 2: Extrapolate. 
If a train travels 20 feet in 1 second, then it must travel 3 times as far in 3 seconds: 
100 * 3 = 300 
Answer: 300 feet 
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