Assignment 1.2: Permutations and Combinations (continued) 9. Using the digits 2, 2, 2, 3, 3, 4, 5, how many a) seven-digit numbers can be formed? (2 marks) b) seven-digit numbers can be formed if the number is greater than 3,400,000? (5 marks) c) seven-digit numbers can be formed if the number is even? (3 marks) continued Module 1: Permutations, Combinations, and the Binomial Theorem 73