The hall had 160 seats. After the reconstruction every row had one seat added to it, and the number of rows doubled. How many seats were before and after the reconstruction, if the number of seats increased by 38?

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Answer 1 · 2017-10-08T20:12:22

Before the reconstruction The problem tells us the hall had:

#color(red)(160)# seats

After the reconstruction There were #38# more seats:

#160 + 38 = color(red)(198)# seats