A class of 19 pupils has five more girls than boys. Let n = the number of boys.
n + (n + 19) = 5
n + (n + 5) = 19
n - (n + 5) = 19
n + (n - 19) = 5
+3
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Home » Mathematics » A class of 19 pupils has five more girls than boys. Let n = the number of boys. n + (n + 19) = 5 n + (n + 5) = 19 n - (n + 5) = 19 n + (n - 19) = 5