An elementary school buys tickets for a field trip to the zoo. The number of children going on the field trip is 10 times the number of adults.

An elementary school buys tickets for a field trip to the zoo. The number of children going on the field trip is 10 times the number of adults. Tickets for children cost $7 each and tickets for adults cost $9 each. The total cost of all of the tickets is $474, how many tickets of each type did the school purchase?

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