Question 923810: In a social hall of a building, there are 150 seats arranged in rows, with 5 more seats per row than the number of rows. How many seats are there in each row? ( answer is 15 - show your solution )
Answer by richard1234(7193)   (Show Source):
You can put this solution on YOUR website! One solution is to guess at the answer, which is fairly easy since 150 isn't a huge number. 10*15 = 150, so 15 seats per row, 10 rows.
Or, you could let x = number of rows, x+5 = number of seats per row so that x(x+5) = 150, then solve the quadratic by rearranging and factoring, or by quadratic formula.
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