College Math

College Math Study Guide

4.12 Chapter Four Review

Question 1: From a panel of total 30 doctors, 20 are males and 10 are females. A delegate of 6 doctors is to be sent abroad. In how many ways can this delegate team be chosen such that 3 males and 2 females are selected? a. 615,600 b. 51,300 c. 1,185 d. 6,930 Question 2: For the election at school, out of twenty students, a teacher wishes to select one president, vice president, secretary, and 5 class representatives for a committee. In how many ways can the committee members be selected? a. 42,325,920 b. 1,860,480 c. 15,504 d. 54,896,000 Question 3: In a school photograph, ten students were to stand in a row. In how many ways can they be placed such that- (i) two students insist on standing next to each other, and (ii) two students refuse to stand next to each other? a. 2903040; 725760 b. 4354560; 3628800 c. 3628800, 4354560 d. 725760; 2903040

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