Out of the 400 emails that Antonia received in her mail, 1/4 were spam emails, while 2/5 of the remaining emails were promotional messages. If the rest of the emails were important emails, calculate the total number of important emails in her inbox.
Out of the 400 emails, 1/4*400 = <<400*1/4=100>>100 emails were spam emails.
The number of emails that were not spam emails is 400-100 = <<400-100=300>>300
2/5 of the emails which were not spam were promotional emails, a total of 2/5*300=<<2/5*300=120>>120 emails.
If the rest of the emails were important emails, there were 300-120 = <<300-120=180>>180 important emails.
#### 180
Antonia'nın postasına gelen 400 e-postanın 1/4'ü spam e-posta iken, kalan e-postaların 2/5'i tanıtım mesajıydı. Geri kalan e-postalar önemli e-postalar ise, gelen kutusundaki toplam önemli e-posta sayısını hesaplayın.
400 e-postadan 1/4*400 = <<400*1/4=100>>100 e-posta spam e-postadır.
Spam olmayan e-postaların sayısı 400-100 = <<400-100=300>>300
Spam olmayan e-postaların 2/5'i tanıtım e-postalarıydı, toplam 2/5*300=<<2/5*300=120>>120 e-posta.
Geri kalan e-postalar önemli e-postalar ise, 300-120 = <<300-120=180>>180 önemli e-posta vardır.
#### 180