Concept explainers
(a)
To graph:
(a)

Explanation of Solution
Given information:
In first round there were 32 chairs and after each round 2 chairs were removed.
Graph:
Let number of chairs be y and rounds be x
x | 0 | 1 | 2 | 3 | 4 | 5 |
y | 32 | 30 | 28 | 26 | 24 | 22 |
Interpretation: Two players were left after 15 rounds.
(a)
To graph: scatter plot of number of chairs v/s round
(a)

Explanation of Solution
Given information:
In first round there were 32 chairs and after each round 1/2 chairs were removed.
Graph:
Let number of chairs be y and rounds be x
x | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
y | 32 | 31.5 | 31 | 30.5 | 30 | 29.5 | 29 | 28.5 | 28 |
Interpretation: There were 2 teams left after 68th round.
(c)
To explain:time taken in both the situation for completing one round.
(c)

Answer to Problem 38PPE
The rounds in which 2 chairs were removed was end first.
Explanation of Solution
Given information:
In one round half chairs were removed and in other 2 chairs were removed
Explanation: As by the graphs of part (a)and part (b) it can be seen that the rounds where 2 chairs were removed was completed faster than the other case.
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