<PRE><B>Question 536251</B>
D = rt where D is distance, r is rate (speed) and t is time.  In this problem D=20ft., t = 1/5 second = .2 second.&lt;P&gt;
20 = .2r  (Divide both sides by .2)&lt;P&gt;

100 ft/s = r.&lt;P&gt;
For the second part r is still 100 ft/s, and time is 3 seconds.&lt;P&gt;
D=RT = 100*3 = 300 feet.

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