There is a dog track in Ebro with 7 dogs in the race. How many different ways can the dogs finish the race?
There is a dog track in Ebro with 7 dogs in the race. How many different ways can the dogs finish the race?
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
There is a dog track in Ebro with 7 dogs in the race. How many different ways can the dogs finish the race? Use the Fundamental Counting Principle to calculate this.
a
210
b
5,040
c
28
d
720
Suppose that Elizabeth has secured three more paintings for her exhibit, for a total of six paintings available, but she still has only enough room to display three of them side by side. How many arrangements of three paintings can she make if there are six paintings to choose from?
a
10
b
40
c
20
d
120
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