SOLUTION: On a train excursion trip, the adult fare was $12.00 and the child's fare was $6.00. The number of passengers was 400, an the total revenue for the trip was $4020. How many adults

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Question 465279: On a train excursion trip, the adult fare was $12.00 and the child's fare was $6.00. The number of passengers was 400, an the total revenue for the trip was $4020. How many adults were there on the train?
Answer by ewatrrr(10682) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

Let x and (400-x) represent the number of adult and youth tickets respectively

Question states***

 $12x + $6(400-x)= $4020

    6x = 1620 

     x = 270,number of adult tickets. 130 the number of child fares (400-270)



CHECKING our Answer***

 $12*270 + $6*130 = $4020