A survey of young adults was taken to determine which of the various media they use regularly to obtain the news. The following information was obtained:
• Of the 36 people who read the newspaper, 13 use only the newspaper to learn the news.
• Of the 48 people who listen to the radio, 11 use only the radio to learn news
• 23 people use all three to learn the news
How many people use both the radio and television regularly to learn the news?​