7. In how many ways can 4 people be seated in a round table?* 4 16

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Question
7. In how many ways can 4 people be seated in a
round table? *
4
6.
9.
16
8. In a town fiesta singing competition with 12
contestants, in how many ways can the organizer
arrange the first three singers? *
132
990
1320
1716
9. How many four-digit numbers can be formed
from the numbers 1, 3, 4, 6, 8, and 9 if repetition of
digits is not allowed? *
120
360
420
540
O O
Transcribed Image Text:7. In how many ways can 4 people be seated in a round table? * 4 6. 9. 16 8. In a town fiesta singing competition with 12 contestants, in how many ways can the organizer arrange the first three singers? * 132 990 1320 1716 9. How many four-digit numbers can be formed from the numbers 1, 3, 4, 6, 8, and 9 if repetition of digits is not allowed? * 120 360 420 540 O O
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