Book Maths Puzzle

How many numbers not exceeding 10000 can be made using the digits 2,4,5,6,8 if repetition of digits is allowed?

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Book Other Question

A board meeting of a company is organized in a room for 24 persons along the two sides of a table with 12 chairs in each side. 6 persons wants to sit on a particular side and 3 persons wants to sit on the other side. In how many ways can they be seated? In how many ways can 5 blue balls, 4 white balls and the rest 6 of different colour balls be arranged in a row?