Question 1172789
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Let x be the number of adult tickets.


Then the number of the student tickets is 3x, according to the condition.


For the total tickets, you have this equation


    x + 3x = 372.


Simplify and find x


     4x    = 372

      x    = 372/4 = 93.


<U>ANSWER</U>.  93 adult tickets.


<U>CHECK</U>.   93 + 3*93 = 372, total tickets.   ! Correct !
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Solved.