Question 424727
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This kind of problem can be solved quickly using logical reasoning and simple arithmetic.<br>
If all 275 tickets were children's tickets, the total cost would be 275($4) = $1100; the actual total is $1174, which is $74 more.<br>
The difference in the cost of an adult ticket and a children's ticket is $3, so the number of adult tickets should be $74/$3.<br>
But that is not a whole number....<br>
That means the numbers given in the problem cannot be correct.<br>