3) In a group of 118 people, some are wearing coat, boots or muffler (or a combination of all these), 8 are wearing all three, 14 are wearing just a coat and boots, 6 are wearing just boots and a muffler and 18 are wearing just a coat and muffler. The number wearing only a coat or only boots is x, and the number wearing only a muffler or none of the three items is (x-4). Find x and hence the number of people wearing a coat?
3) In a group of 118 people, some are wearing coat, boots or muffler (or a combination of all these), 8 are wearing all three, 14 are wearing just a coat and boots, 6 are wearing just boots and a muffler and 18 are wearing just a coat and muffler. The number wearing only a coat or only boots is x, and the number wearing only a muffler or none of the three items is (x-4). Find x and hence the number of people wearing a coat?
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Total= 118
8 are wearing all three
14 = a coat and boots
6 = boots and muffler
18 = a coat and muffler
Only a coat or only boots = x
Only a muffler or none of the three = x-4
Coat=c
Boots = b
Muffler
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