Twelve chairs in two colours are arranged, as shown. Find in how many ways nine people can

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Twelve chairs in two colours are arranged, as shown.

Find in how many ways nine people can sit on these chairs if:

a. The two blue chairs in column C must remain unoccupied

b. All of the green chairs must be occupied

c. More blue chairs than green chairs must be occupied

d. At least one of the chairs in row 2 must remain unoccupied.

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Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook

ISBN: 9781108407304

1st Edition

Authors: Dean Chalmers, Julian Gilbey

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Question Posted: Sep 13, 2021 03:01 AM

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Twelve chairs in two colours are arranged, as shown. Find in how many ways nine people can

Question:

A B C D 1 ODD 3 2.

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Solution Number of total arrangements 129979833600 Number of arrangements in which all ...View the full answer

Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook

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