Question 935692
a.	


There are 10 balls. Five of them are even (2,4,6,8,10).


Answer: 5/10 = <font color="red">1/2</font> (don't forget to reduce all fractions fully)


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b.	


There are 10 balls, 9 of which are not 5. Only 1 ball is labeled 5.


Answer: <font color="red">9/10</font>
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c.	


There are 4 balls less than 5 (1,2,3,4)
There are 5 odd numbers (1,3,5,7,9)
Combine the two lists and toss out the duplicates to get {1,2,3,4,5,7,9}
There are 7 numbers in this list {1,2,3,4,5,7,9}
Out of 10 total


Answer: <font color="red">7/10</font>