Answer:
Personal emails = 274 emails.
Step-by-step explanation:
Given,
Business and personal emails = 578
Therefore, there are two types of emails. Again, there are 30 fewer emails in personal emails.
The total number of emails after deducting the fewer personal emails = (578 - 30) = 548 emails.
Therefore, each type of email, according to the question = (548/2) = 274 emails
So, personal emails are 274. Business emails = (274 + 30) = 304 emails.