README.md in trackler-2.2.1.111

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 # Sum Of Multiples
 
-Given a number, find the sum of all the multiples of particular numbers up to
+Given a number, find the sum of all the unique multiples of particular numbers up to
 but not including that number.
 
-If we list all the natural numbers up to but not including 20 that are
-multiples of either 3 or 5, we get 3, 5, 6 and 9, 10, 12, 15, and 18.
+If we list all the natural numbers below 20 that are multiples of 3 or 5,
+we get 3, 5, 6, 9, 10, 12, 15, and 18.
 
 The sum of these multiples is 78.
-
-Given a number, find the sum of the multiples of a given set of numbers,
-up to but not including that number.
 
 ## Getting Started
 
 Make sure you have read [the C++ page](http://exercism.io/languages/cpp) on
 exercism.io.  This covers the basic information on setting up the development