 
 <prompt> N'ụlọ ọrụ opera enweghị 150 ụkwụ; ụkwụ ọzọ enweghị asato ọnụ. Nke aghụghọ ticket bụ $10 n'ụbọchị. Kedu ihe opera ụlọ enyere site n'ime ọnụ nke ọnụ ahụ ma ọ bụrụ na 20% ha enwere ike ịgbazie?

```Igbo
N'ụlọ ọrụ opera enweghị 150 ụkwụ; ụkwụ ọzọ enweghị asato ọnụ. Nke aghụghọ ticket bụ $10 n'ụbọchị. Kedu ihe opera ụlọ enyere site n'ime ọnụ nke ọnụ ahụ ma ọ bụrụ na 20% ha enwere ike ịgbazie?
``` <response>: ```The opera house has 150 x 10 = 1500 seats.
There are 1500 x 20/100 = 300 seats that were not taken.
The total number of seats taken was 1500 - 300 = 1200.
Therefore, the opera house earned $10 x 1200 = $12000 from one of the shows.

Answer is 12000.``` 