Mastering Indonesian will take from you 36 hours or 900 weeks in a class according to FSI. Difficulty category for mastering it is evaluated - point.
Learning Arabic might seem like a overwhelming thing to do. FSI has concluded that it takes 2200 hours or 88 weeks in a class to learn the language. The difficulty point is 3.
You will most likely find people, who speaks Indonesian in Indonesia, Netherlands, the Philippines, Saudi Arabia, Singapore, and the U.S.
Number of native speakers is about 23,000,000.
Number of fluent speakers is about 163,000,000. The biggest country in which Indonesian is used as a native language is Indonesia.
Native speakers of Arabic are mostly from Saudi Arabia and are about 15,000,000 people.
Arabic are spoken fluently by 10,000,000 people.
The language is spoken in Saudi Arabia, Algeria, Bahrain, Chad, Djibouti, Egypt, Iraq, Jordan, Kuwait, Lebanon, Libya, Morocco, Oman, Palestinian West Bank and Gaza, Qatar, Somalia, Sudan, Syria, Tunisia, Mauritania, United Arab Emirates, and Yemen.
Indonesian came from Malayo-Polynesian branch of the Austronesian language family.
Semitic family of languages is the origin of Arabic language.