In 2009, the number of days with "good" air quality in a city is 3 / 5 of the whole year, and the number of days with "excellent" air quality is 1 / 3 less than that with "good" air quality?

In 2009, the number of days with "good" air quality in a city is 3 / 5 of the whole year, and the number of days with "excellent" air quality is 1 / 3 less than that with "good" air quality?

Days of "good" air quality in this city
=365*(3/5)
=219 (days)
Days of "excellent" air quality
=219*(1-1/3)
=219*(2/3)
=146 (days)