Kelvins monthly allowance is $42 and mikes monthly allowance is $63. How many times mikes monthly allowance is kelvins monthly a
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Solution: We have to choose two positions president and vice president from eight people. So, we need to use the Permutations formula in order to find the possible number of combinations.
The number of possible combinations is:
8P2
Therefore the possible number of combination to select two positions from 8 people is 56