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