Section PC.0 – Solutions to the Practice Problems

1. {m, i, s, p}

2. {January, February, March, April, May, June, July, August, September, October, November, December}

3. {1, 2, 3, 4, 7, 9, 10}

4. {orange, yellow, purple}

5. {2, 8, 12, 14}

6.

• a. {2, 3, 5, 7, 10, 11, 12, 13, 14, 16, 17, 19, 20}
• b. {5, 10, 13, 14, 16, 19}
• c. {20}

7.

• a. {1, 4, 5, 6, 8, 11, 12, 14, 15, 16, 17, 18}
• b. {11, 12, 16}
• c. {6, 14, 17, 18}

8.

• a. {1, 2, 3, 4, 5, 6, 8, 9, 11, 12, 14, 15, 17, 18, 19, 20}
• b. {9, 12, 14}
• c. {5, 17, 19, 20}

9.

• a. {2, 3, 5, 6, 8, 10}
• b. {} or Ø
• c. {5}
• d. {1, 4, 7, 9}

10.

• a. {s, t}
• b. {c, k}

11.

a.

b.

c.

d.

12.

• a. {b, d}
• b. {a}

13.

• a. 5
• b. 3
• c. 6
• d. 1

14.

• a. 3
• b. 5
• c. 7
• d. 4
• e. 6

15.

• a. 23
• b. 24
• c. 29
• d. 18
• e. 8
• f. 44
• g. 21

16.

• a. 8
• b. 15
• c. 12
• d. 11
• e. 2
• f. 18
• g. 5

17.

• a. 32
• b. 27
• c. 52
• d. 4
• e. 68
• f. 37

18.

• a. 28
• b. 8
• c. 11
• d. 29

19.

• a. 24
• b. 11
• c. 13

20.

• a. 44
• b. 25
• c. 10
• d. 35