perm and comb review answers
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Permutation and Combination review answers
Calculators are not allowed for this part of the test. Each question is worth one mark.
MULTIPLE CHOICE:
Permutations, Combinations, and Binomial Expansion
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13.If all the following letters S L E U F I D F are used, how many 8 letter arrangements are possible?
d.7! 2!7!2!
2!8!2!8!a. b. c.
14.In the binomial expansion of (3x + 2)8, the last term is:
228 20c. d.b.a. . 283
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If there are 3 identical red books and 4 identical green books on a shelf, how many arrangements are possible keeping all the red books together?
b. c.a. d. 3!4!5!4!
7!3!4!
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SHORT ANSWER:
Calculators are not allowed for this part of the test. Each question is worth one mark.
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LONG ANSWER: Calculators are not allowed for this part of the test. Marks are indicated for each question.
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LONG ANSWER: Calculators are allowed for this part of the test. Marks are indicated for each question. 1.
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