Question 945086
Q1:-In how many different ways is it possible to arrange the letter COMBINATIONS?
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COMBINATIONS has 12 letters with 2 indistinguishable O's,
2 indistinguishable I's, and 2 indistinguishable N's.

Answer:  {{{12!/(2!2!2!)}}}
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Q2:-In how many different ways can you choose a committiee of 5 members from a group of 20 people?
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Answer:  20 people choose 5 = {{{20C5}}}

Edwin</pre>