Question 98094
In his pocket Pat has 5 dimes, 7 nickels, and 4 pennies. He selects 4 coins. 
a.)How many ways can he select 4 dimes?.........5C4 = 5
b.)How many ways can he select 4 pennies?.......4C4 = 1
c.) How many ways can he select 3 nickels and one dime?..7C3*5C1=35*5=175
d.) How many ways can he select exactly 3 nickels?....7C3=35
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Cheers,
Stan H.