Tickets for a concert cost $2 each for children and $5 each for adults.A group of 30 people consisting of children and adults paid a total of $87 for the concert.How many adults were in the group?
Let, the no. of adults be "x" then, the no. of childern = total people - total adults = (30 - x) Now, According to the quesiton, 2 (30 - x) + 5x = 87 60 - 2x + 5x = 87 60 + 3x = 87 3x = 87 - 60 3x = 27 x = 27 / 3 x = 9 So, there were 9 adults in the group
