self Maths Puzzle

From 4 gentlemen and 4 ladies a committee of 5 is to be formed. The committee consists of a President, a Vice-President and three Secetaries. what is the number of ways of selecting the committee with at least 3 women such that at least one women holds the post of either a president or a vice- president.

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self Other Question

If
41 = 90
75 = 154
104 = 222
1253 = 2530
Then
14567 = ?
What is the missing number
15,30,?,40,8,48,....