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How many two-digit numbers can be formed from the digits 1, 3, 5, and 7? How many two-digit numbers can be formed from the digits 1, 3, 5, and 7? In how many different ways can 5 people sit in a row of 5 empty seats? How many 6-letter words can be formed from the letters in the word GOOGLE? A class of 8 students wants to elect a committee made up of three students. How many different committees can be formed? We stop in front of an ice cream parlor and look at five different flavors on the counter. How many scoops of ice cream of three flavors can I choose? combinatorics, combinatorics permutations and variations permutations, permutations variations and combinations, combinatorial analysis. Help us by spreading this material on your networks, subscribing (very important) that would help us a lot to continue growing and offer better quality study materials. Remember that there are more video classes on all topics on our blog: academiainternet.wordpress.com Thanks to everyone. Greetings. #AcademiaInternet