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Assistant:
I understand all languages.
How many working days in year 1990?
Here is the detail of the calculation:
Because 1990 is not a leap year, it has 365 days.
Let's remove 52 saturdays and 52 sundays. It remains 261 days.
Now, let's remove 12 public holidays that do not fall during a weekend and we obtain 249 working days in 1990.
Here is the list of these 12 public holidays:
1. Confraternização Universal : Monday, 1 January, 1990
2. Aniversário de São Paulo : Thursday, 25 January, 1990
3. Terça-feira de Carnaval : Tuesday, 27 February, 1990
4. Sexta Feira Santa ou Paixão de Cristo : Friday, 13 April, 1990
5. Dia do Trabalho : Tuesday, 1 May, 1990
6. Corpus Christi : Thursday, 14 June, 1990
7. Revolução constitucionalista : Monday, 9 July, 1990
8. Independência do Brasil : Friday, 7 September, 1990
9. Nossa Senhora Aparecida : Friday, 12 October, 1990
10. Finados : Friday, 2 November, 1990
11. Proclamação da República Brasileira : Thursday, 15 November, 1990
12. Natal : Tuesday, 25 December, 1990
And here is the public holiday falling on a weekend:
1. Tiradentes : Saturday, 21 April, 1990