<PRE><B>Question 473465</B>
In how many ways can 8 people sit around a round table? 
Ans: 7!
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Using all the prime numbers less than 10 how many four-digit even numbers can be made if repetition is not allowed.
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Primes less than 10: 2,3,5,7
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To be even the 2 must be the right-most digit
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The other 3 digits can be arranges is 3! = 6 ways
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# of numbers is 1*6 = 6
Cheers,
Stan H.
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