Question
The average amount of money collected by a group of students at a flag day event was $103. When another 15 students turned up to help, the total amount donated increased by $791 and the average amount of money collected became $90. How many students were there in the group at first?
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The average amount of money collected by a group of students at a flag day event was $103. When another 15 students turned up to help, the total amount donated increased by $791 and the average amount of money collected became $90. How many students were there in the group at first?