At a carnival,$11 500 was collected from the sale of tickets.The amount collected from the sale of child tickets is $3500 more sale of adult tickets.
a)How much was collected from the sale of adults tickets?
b)The ratio of the number of adults tickets sold to the number of children tickets sold is 1:3.The cost of an adult ticket is $30 more that the cost of a child ticket.How many adult tickets were sold.
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