NOTE: IS STUDYING \"DISCRETE MATHEMATICS FOR COMPUTER SCIENCE\" ABOUT PERMUATION

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NOTE: IS STUDYING "DISCRETE MATHEMATICS FOR COMPUTER SCIENCE" ABOUT PERMUATION AND COMBINATION, AND WANT TO SEE THE WORK OF THE ANSWERS

Question 1 A store sells clothes for men. It has 3 kinds of jackets, 7 kinds of shirts, and 5 kinds of pants. Find the number of ways a person can buy: (a) one of the items 45 (b) one of each of the three kinds of clothes 32 Answer 1: istrict. instructure.com/courses/34322/quizzes1 33270? module itemid= 1 436866 Pag - - ting Problems: CS262-35197 Discrete Structures 3/13/18, ered 45 Answer 2: 32 ered

Explanation / Answer

Store has 3 kinds of Jackets, 7 kinds of Shirts and 5 kinds of pants;

a) The number of ways a person can buy one of the items is : (3+5+7) = 15

Explanation: A person will buy 1 item at a time so he can buy Jackets in 3 ways, shirts in 7 ways and pants in 5 different ways; so the answer will be the counting sum of different ways.

b) The number of ways a person can buy one of each of the three kinds of clothes is: (3*5*7) = 105

Explanation: A person will buy 1 of each of the three kinds; so he has 3 choices of jackets with each of them 7 different choices of shirts and with each of the combination he has 5 different choices of pants , so the total number of ways will be the multiplication of 3 numbers: 3*7*5 =105

/*Hope this helps. Thanks.*/

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